Question 761448
Volume of a cylinder = {{{pi * r^2 * h}}} where r is the radius of the base and h is the height.

From the formula, we see that volume is proportional to the square of the radius.

So, if the radius of the larger cylinder is 6 times that of the small cylinder, the volume would be {{{6^2 = 36}}} times.

Note that you don't actually need the values of the radius and height to get this answer, since only the "ratio" is asked for.

:)