Home / 717,697,593-990,423,076.86-387,672,735.24

Finding the Fourth Proportional to 717,697,593, 990,423,076.86 and 387,672,735.24

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Solution

The fourth proportional to 717,697,593, 990,423,076.86 and 387,672,735.24 is: 534,988,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,697,593 : 990,423,076.86 = 387,672,735.24 : x
  2. Step 2: Convert to fraction form
    717,697,593/990,423,076.86 = 387,672,735.24/x
  3. Step 3: Cross multiply
    717,697,593x = 990,423,076.86 × 387,672,735.24
  4. Step 4: Simplify right side
    717,697,593x = 383,960,023,251,132,992
  5. Step 5: Solve for x
    x = 383,960,023,251,132,992/717,697,593
  6. Step 6: Final answer
    x = 534,988,589.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.