Home / 749,208,521.10-1,123,812,781.65-318,331,029.90

Finding the Fourth Proportional to 749,208,521.10, 1,123,812,781.65 and 318,331,029.90

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Solution

The fourth proportional to 749,208,521.10, 1,123,812,781.65 and 318,331,029.90 is: 477,496,544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,208,521.10 : 1,123,812,781.65 = 318,331,029.90 : x
  2. Step 2: Convert to fraction form
    749,208,521.10/1,123,812,781.65 = 318,331,029.90/x
  3. Step 3: Cross multiply
    749,208,521.10x = 1,123,812,781.65 × 318,331,029.90
  4. Step 4: Simplify right side
    749,208,521.10x = 357,744,480,197,428,352
  5. Step 5: Solve for x
    x = 357,744,480,197,428,352/749,208,521.10
  6. Step 6: Final answer
    x = 477,496,544.85

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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.