Home / 87,899,563.20-131,849,344.80-40,123,819.20

Finding the Fourth Proportional to 87,899,563.20, 131,849,344.80 and 40,123,819.20

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Solution

The fourth proportional to 87,899,563.20, 131,849,344.80 and 40,123,819.20 is: 60,185,728.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899,563.20 : 131,849,344.80 = 40,123,819.20 : x
  2. Step 2: Convert to fraction form
    87,899,563.20/131,849,344.80 = 40,123,819.20/x
  3. Step 3: Cross multiply
    87,899,563.20x = 131,849,344.80 × 40,123,819.20
  4. Step 4: Simplify right side
    87,899,563.20x = 5,290,299,272,393,660
  5. Step 5: Solve for x
    x = 5,290,299,272,393,660/87,899,563.20
  6. Step 6: Final answer
    x = 60,185,728.80

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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.