Best Answer

12 × ratio = -18

→ ratio = -18/12 = -3/2 = -1.5

Checking:

-18 × ratio = -18 × -3/2 = 27 as required

The common ratio is -3/2 (or -1.5)

Q: What is the common ratio in the sequence 12 -18 27?

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The geometric sequence with three terms with a sum of nine and the sum to infinity of 8 is -9,-18, and 36. The first term is -9 and the common ratio is -2.

120 to 180 is an equivalent ratio.

25 is the next number that appears in that sequence.

3/2

3 to 2

Related questions

The "common ratio" of a geometric series is any of the numbers, divided by the previous number.If in all cases you get the same ratio (the same result of a division), then you have a common ratio. If the division gives you different numbers, then there is no common ratio.

The ratio of 18 to 12 (18:12) = 3:2 = 1.5 people per chair

A ratio of 18 to 12 can be written as 18 to 12, 18:12, or 18/12. Furthermore, 18 and 12 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on. A ratio of 18 to 12 simply means that for every 18 of something, there are 12 of something else, with a total of 30.

The geometric sequence with three terms with a sum of nine and the sum to infinity of 8 is -9,-18, and 36. The first term is -9 and the common ratio is -2.

120 to 180 is an equivalent ratio.

120 to 180 is an equivalent ratio.

2 to 3.

2 to 3.

2 to 3.

It is: 18 to 12

The ratio of 5 and 7 8 and 9 12 and 18 85 and 170 is 5:7/8:9/12:18/85:170.

12:18 is the same as 4:6 which is the same as 2:3.