Home / 499,392,000.70-749,088,001.05-459,977,011.90

Finding the Fourth Proportional to 499,392,000.70, 749,088,001.05 and 459,977,011.90

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Solution

The fourth proportional to 499,392,000.70, 749,088,001.05 and 459,977,011.90 is: 689,965,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,392,000.70 : 749,088,001.05 = 459,977,011.90 : x
  2. Step 2: Convert to fraction form
    499,392,000.70/749,088,001.05 = 459,977,011.90/x
  3. Step 3: Cross multiply
    499,392,000.70x = 749,088,001.05 × 459,977,011.90
  4. Step 4: Simplify right side
    499,392,000.70x = 344,563,260,373,123,008
  5. Step 5: Solve for x
    x = 344,563,260,373,123,008/499,392,000.70
  6. Step 6: Final answer
    x = 689,965,517.85

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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.