Home / 187,836,308.32-281,755,957.16-77,143,458.88

Finding the Fourth Proportional to 187,836,308.32, 281,755,957.16 and 77,143,458.88

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Solution

The fourth proportional to 187,836,308.32, 281,755,957.16 and 77,143,458.88 is: 115,715,802.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,836,308.32 : 281,755,957.16 = 77,143,458.88 : x
  2. Step 2: Convert to fraction form
    187,836,308.32/281,755,957.16 = 77,143,458.88/x
  3. Step 3: Cross multiply
    187,836,308.32x = 281,755,957.16 × 77,143,458.88
  4. Step 4: Simplify right side
    187,836,308.32x = 21,735,629,095,479,008
  5. Step 5: Solve for x
    x = 21,735,629,095,479,008/187,836,308.32
  6. Step 6: Final answer
    x = 115,715,802.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.