Home / 527,656,896.60-791,485,344.90-391,608,000.60

Finding the Fourth Proportional to 527,656,896.60, 791,485,344.90 and 391,608,000.60

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Solution

The fourth proportional to 527,656,896.60, 791,485,344.90 and 391,608,000.60 is: 587,412,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,656,896.60 : 791,485,344.90 = 391,608,000.60 : x
  2. Step 2: Convert to fraction form
    527,656,896.60/791,485,344.90 = 391,608,000.60/x
  3. Step 3: Cross multiply
    527,656,896.60x = 791,485,344.90 × 391,608,000.60
  4. Step 4: Simplify right side
    527,656,896.60x = 309,951,993,420,490,432
  5. Step 5: Solve for x
    x = 309,951,993,420,490,432/527,656,896.60
  6. Step 6: Final answer
    x = 587,412,000.90

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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.