There are two circular granaries of different sizes. The perimeter of the small granary is 12.56 meters, and its floor area is (1/3) that of the large granary. How many square meters is the floor area of the large granary?
两个大小不等的圆形粮仓，小粮仓的底面周长是12.56米，它的占地面积是大粮仓的(1/3)，大粮仓占地面积是多少平方米？
<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

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

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

<gadget id="calculator">4 / (1/3)</gadget>
<output>12</output>

<gadget id="calculator">3.14 * 12</gadget>
<output>37.68</output>

<result>37.68</result>