Home / 87,645,512.40-131,295,058.20-76,874,974.80

Finding the Fourth Proportional to 87,645,512.40, 131,295,058.20 and 76,874,974.80

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Solution

The fourth proportional to 87,645,512.40, 131,295,058.20 and 76,874,974.80 is: 115,160,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645,512.40 : 131,295,058.20 = 76,874,974.80 : x
  2. Step 2: Convert to fraction form
    87,645,512.40/131,295,058.20 = 76,874,974.80/x
  3. Step 3: Cross multiply
    87,645,512.40x = 131,295,058.20 × 76,874,974.80
  4. Step 4: Simplify right side
    87,645,512.40x = 10,093,304,290,489,534
  5. Step 5: Solve for x
    x = 10,093,304,290,489,534/87,645,512.40
  6. Step 6: Final answer
    x = 115,160,537.19

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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.