The base area of a cylinder and a cone are equal, and the volume ratio is 2:3. It is known that the height of the cylinder is 12 cm. How many centimeters is the height of the cone?
一个圆柱体与一个圆锥体的底面积相等，体积的比是2：3，已知圆柱高12厘米，圆锥高多少厘米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(2/3) * (1/3)</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">12 / (2/9)</gadget>
<output>54</output>

<result>54</result>