The ratio of the heights of a cylinder to a cone is 1:2, and the ratio of the radii of the bases is 1:3. The volume of the cylinder is 36 cubic meters, what is the volume of the cone?
一个圆柱和一个圆锥的高的比是1：2，底面半径之比是1：3．圆柱的体积是36立方米，圆锥的体积是多少立方米？
<gadget id="calculator">6 / 1</gadget>
<output>6</output>

<gadget id="calculator">36 * 6</gadget>
<output>216</output>

<result>216</result>