The ball falls freely from a high altitude, then the height of the fourth bounce when it touches the ground is (2/5) of the height of the previous drop. If the ball falls freely from a height of 125 meters, how much is the height of the fourth bounce?
球从高空自由下落，那么第四次接触地面弹起的高度是前次下落高度的(2/5)，如果球从125米高处自由落下，那么第四次弹起的高度是多少米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">125 * (2/5) * (2/5) * (2/5) * (2/5)</gadget>
<output>16/5 = around 3.2</output>

<result>16/5 = around 3.2</result>