A cylindrical grain hoard has a bottom diameter of 8 meters, and the rice inside is 3 meters high. The volume of the rice is exactly (5/8) the volume of the grain hoard. What is the volume of the grain hoard in cubic meters?
一个圆柱形粮囤，底面直径8米，里面装的大米有3米高，大米的体积正好是粮囤容积的(5/8)，这个粮囤的容积是多少立方米？
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">3 / (5/8)</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">3.14 * 16 * (24/5)</gadget>
<output>241.152</output>

<result>241.152</result>