A conical pile of sand has a bottom area of 12.56m**2 and a height of 1.5m. If this pile of sand is spread on a road with a length of 31.4m and a thickness of 4cm, how long can it be spread?
一个圆锥形沙堆，底面积12.56m**2，高1.5m，把这堆沙铺在一条长31.4m、4cm厚的路面上，能铺多长？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1.5 / 31.4 / (1/25)</gadget>
<output>1.194268</output>

<gadget id="calculator">(1/3) * 12.56 * 1.194268</gadget>
<output>5.000002</output>

<result>5.000002</result>