The ratio of the radius of a cone to the base of a cylinder is 1:3, and the heights are equal. It is known that the volume of the cone is 15.7 cubic centimeters. Find the volume of the cylinder.
一个圆锥和圆柱底面半径之比是1：3，高相等，已知这个圆锥的体积是15.7立方厘米，求圆柱的体积．
<gadget id="calculator">27 / 1</gadget>
<output>27</output>

<gadget id="calculator">15.7 * 27</gadget>
<output>423.9</output>

<result>423.9</result>