A conical grain heap covers an area of 31.4 square meters and a height of 9 meters. Putting this pile of millet into a granary just takes up (2/5) of the volume of the granary. Find the volume of the granary.
一个圆锥形谷堆，占地面积是31.4平方米，高是9米，把这堆谷子装进粮仓里，正好占用了这个粮仓容积的(2/5)，求这个粮仓的容积．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/3) / (2/5)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">31.4 * 9 * (5/6)</gadget>
<output>235.5</output>

<result>235.5</result>