Home / 749,026,956.10-1,123,540,434.15-458,789,311.30

Finding the Fourth Proportional to 749,026,956.10, 1,123,540,434.15 and 458,789,311.30

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Solution

The fourth proportional to 749,026,956.10, 1,123,540,434.15 and 458,789,311.30 is: 688,183,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,026,956.10 : 1,123,540,434.15 = 458,789,311.30 : x
  2. Step 2: Convert to fraction form
    749,026,956.10/1,123,540,434.15 = 458,789,311.30/x
  3. Step 3: Cross multiply
    749,026,956.10x = 1,123,540,434.15 × 458,789,311.30
  4. Step 4: Simplify right side
    749,026,956.10x = 515,468,342,001,381,568
  5. Step 5: Solve for x
    x = 515,468,342,001,381,568/749,026,956.10
  6. Step 6: Final answer
    x = 688,183,966.95

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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.