55
55 US gallons is about 208.2 liters.
7 liters = 1.85 US gallons (approx). So 7 liters is smaller.
6 cups is smaller than 2 litres.
55 US fluid ounces is 1.62654 liters.
55 US gallons = about 208.197 liters.
0.000055 liters
55 cubic feet is approximately 1,557.43 liters.
Bigger.
Millilitres are smaller than liters
The pattern appears to be that 2 is 27 times smaller than 55, so following the same logic, 6 would be 27 times smaller than the missing value. Therefore, 6 is to 162 as 2 is to 55.
There are approximately 208.2 liters in a 55 gallon drum.