The ratio of the volumes of a cylinder to a cone is 4:3, and the ratio of the areas of the bases is 4:1. If the height of the cone is 7.2 cm, what is the height of the cylinder.
一个圆柱和一个圆锥的体积的比是4：3，底面积的比是4：1．如果圆锥的高是7.2厘米，那么圆柱的高是多少．
<gadget id="calculator">9 / 1</gadget>
<output>9</output>

<gadget id="calculator">7.2 / 9</gadget>
<output>0.8</output>

<result>0.8</result>