The geometric mean of 3 and 27 is 9.0
First you have to set up a proprtion. 45 over x equals x over 5. Then you get x squared equals 225(45*5). Finally you have to find the square root of 225 which is 15.
The geometric mean of 3 an 48 is 12 [√(3 x 48) = √144 = 12]
The geometric mean of 3 and 75 is 15.0
9/x = x/225 x2 = 2,025 x = 45
Just use the definition of geometric mean. Multiply all the numbers together, then take the square root. (In this case, it is the square, or second, root, because there are two numbers; for the geometric mean of three numbers, you take the cubic root, etc.)
45
The geometric mean of 3 and 27 is 9.0
The geometric mean of 16 and 3 is 6.92820323028
45
√24 x √45 = 4.89897948556636 x 6.70820393249937 = 32.86335345031
Gm = SQRT (9*5) = SQRT (45) = 6.708 (to 3 decimal places)
The geometric mean of 3 an 48 is 12 [√(3 x 48) = √144 = 12]
The geometric mean of 3 and 75 is 15.0
Geometric mean of 5 and 15= √(5x15)=√75=5√3
What is the sum of the first 27 terms of the geometric sequence -3, 3, - 3, 3, . . . ?
6.7082