A cylinder and a cone have the same base radius and volume, and the height of the cone is 4.5 decimeters. What is the height of the cylinder?
一个圆柱和一个圆锥的底面半径和体积都相等，圆锥的高4.5分米，圆柱的高是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4.5 * (1/3)</gadget>
<output>1.5</output>

<result>1.5</result>