Home / 717,697,595.25-990,423,080.01-387,672,737.49

Finding the Fourth Proportional to 717,697,595.25, 990,423,080.01 and 387,672,737.49

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Solution

The fourth proportional to 717,697,595.25, 990,423,080.01 and 387,672,737.49 is: 534,988,593.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,697,595.25 : 990,423,080.01 = 387,672,737.49 : x
  2. Step 2: Convert to fraction form
    717,697,595.25/990,423,080.01 = 387,672,737.49/x
  3. Step 3: Cross multiply
    717,697,595.25x = 990,423,080.01 × 387,672,737.49
  4. Step 4: Simplify right side
    717,697,595.25x = 383,960,026,700,753,984
  5. Step 5: Solve for x
    x = 383,960,026,700,753,984/717,697,595.25
  6. Step 6: Final answer
    x = 534,988,593.03

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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.