Home / 629,860,861.40-944,791,292.10-387,660,234.20

Finding the Fourth Proportional to 629,860,861.40, 944,791,292.10 and 387,660,234.20

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Solution

The fourth proportional to 629,860,861.40, 944,791,292.10 and 387,660,234.20 is: 581,490,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,860,861.40 : 944,791,292.10 = 387,660,234.20 : x
  2. Step 2: Convert to fraction form
    629,860,861.40/944,791,292.10 = 387,660,234.20/x
  3. Step 3: Cross multiply
    629,860,861.40x = 944,791,292.10 × 387,660,234.20
  4. Step 4: Simplify right side
    629,860,861.40x = 366,258,013,565,606,592
  5. Step 5: Solve for x
    x = 366,258,013,565,606,592/629,860,861.40
  6. Step 6: Final answer
    x = 581,490,351.30

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Double scale
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Similar ratio
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1.5x scale

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.