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Finding the Fourth Proportional to 629,858,600.80, 944,787,901.20 and 579,974,005.60

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Solution

The fourth proportional to 629,858,600.80, 944,787,901.20 and 579,974,005.60 is: 869,961,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,600.80 : 944,787,901.20 = 579,974,005.60 : x
  2. Step 2: Convert to fraction form
    629,858,600.80/944,787,901.20 = 579,974,005.60/x
  3. Step 3: Cross multiply
    629,858,600.80x = 944,787,901.20 × 579,974,005.60
  4. Step 4: Simplify right side
    629,858,600.80x = 547,952,423,501,381,120
  5. Step 5: Solve for x
    x = 547,952,423,501,381,120/629,858,600.80
  6. Step 6: Final answer
    x = 869,961,008.40

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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.