A conical wheat pile has a base circumference of 25.12 meters and a height of 3 meters. Put these wheat into a cylindrical grain storehouse with a bottom diameter of 4 meters, just full, how many meters is the height of this grain storehouse?
一个圆锥形麦堆，底面周长是25.12米，高是3米．把这些小麦装入一个底面直径是4米的圆柱形粮囤内，正好装满，这个粮囤的高是多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

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

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

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

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">3 / 12.56</gadget>
<output>0.238854</output>

<gadget id="calculator">(1/3) * 3.14 * 16 * 0.238854</gadget>
<output>4.000008</output>

<result>4.000008</result>