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Finding the Fourth Proportional to 694,917,508.52, 958,982,452.40 and 377,374,978.78

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Solution

The fourth proportional to 694,917,508.52, 958,982,452.40 and 377,374,978.78 is: 520,775,456.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,917,508.52 : 958,982,452.40 = 377,374,978.78 : x
  2. Step 2: Convert to fraction form
    694,917,508.52/958,982,452.40 = 377,374,978.78/x
  3. Step 3: Cross multiply
    694,917,508.52x = 958,982,452.40 × 377,374,978.78
  4. Step 4: Simplify right side
    694,917,508.52x = 361,895,982,618,160,512
  5. Step 5: Solve for x
    x = 361,895,982,618,160,512/694,917,508.52
  6. Step 6: Final answer
    x = 520,775,456.34

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1.5x scale

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.