Home / 87,754,517.20-131,631,775.80-66,071,724.40

Finding the Fourth Proportional to 87,754,517.20, 131,631,775.80 and 66,071,724.40

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Solution

The fourth proportional to 87,754,517.20, 131,631,775.80 and 66,071,724.40 is: 99,107,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,754,517.20 : 131,631,775.80 = 66,071,724.40 : x
  2. Step 2: Convert to fraction form
    87,754,517.20/131,631,775.80 = 66,071,724.40/x
  3. Step 3: Cross multiply
    87,754,517.20x = 131,631,775.80 × 66,071,724.40
  4. Step 4: Simplify right side
    87,754,517.20x = 8,697,138,412,940,189
  5. Step 5: Solve for x
    x = 8,697,138,412,940,189/87,754,517.20
  6. Step 6: Final answer
    x = 99,107,586.60

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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.