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Finding the Fourth Proportional to 629,857,481.40, 944,786,222.10 and 220,954,966.20

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Solution

The fourth proportional to 629,857,481.40, 944,786,222.10 and 220,954,966.20 is: 331,432,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857,481.40 : 944,786,222.10 = 220,954,966.20 : x
  2. Step 2: Convert to fraction form
    629,857,481.40/944,786,222.10 = 220,954,966.20/x
  3. Step 3: Cross multiply
    629,857,481.40x = 944,786,222.10 × 220,954,966.20
  4. Step 4: Simplify right side
    629,857,481.40x = 208,755,207,770,331,200
  5. Step 5: Solve for x
    x = 208,755,207,770,331,200/629,857,481.40
  6. Step 6: Final answer
    x = 331,432,449.30

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Similar ratio
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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.