Home / 15,761,393.68-21,742,452.68-12,824,490.16

Finding the Fourth Proportional to 15,761,393.68, 21,742,452.68 and 12,824,490.16

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Solution

The fourth proportional to 15,761,393.68, 21,742,452.68 and 12,824,490.16 is: 17,691,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761,393.68 : 21,742,452.68 = 12,824,490.16 : x
  2. Step 2: Convert to fraction form
    15,761,393.68/21,742,452.68 = 12,824,490.16/x
  3. Step 3: Cross multiply
    15,761,393.68x = 21,742,452.68 × 12,824,490.16
  4. Step 4: Simplify right side
    15,761,393.68x = 278,835,870,448,925.62
  5. Step 5: Solve for x
    x = 278,835,870,448,925.62/15,761,393.68
  6. Step 6: Final answer
    x = 17,691,066.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.