Home / 749,208,520.35-1,123,812,780.53-318,331,029.15

Finding the Fourth Proportional to 749,208,520.35, 1,123,812,780.53 and 318,331,029.15

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Solution

The fourth proportional to 749,208,520.35, 1,123,812,780.53 and 318,331,029.15 is: 477,496,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,208,520.35 : 1,123,812,780.53 = 318,331,029.15 : x
  2. Step 2: Convert to fraction form
    749,208,520.35/1,123,812,780.53 = 318,331,029.15/x
  3. Step 3: Cross multiply
    749,208,520.35x = 1,123,812,780.53 × 318,331,029.15
  4. Step 4: Simplify right side
    749,208,520.35x = 357,744,478,996,446,336
  5. Step 5: Solve for x
    x = 357,744,478,996,446,336/749,208,520.35
  6. Step 6: Final answer
    x = 477,496,543.73

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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.