Home / 629,856,823.40-944,785,235.10-399,990,876.20

Finding the Fourth Proportional to 629,856,823.40, 944,785,235.10 and 399,990,876.20

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Solution

The fourth proportional to 629,856,823.40, 944,785,235.10 and 399,990,876.20 is: 599,986,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,856,823.40 : 944,785,235.10 = 399,990,876.20 : x
  2. Step 2: Convert to fraction form
    629,856,823.40/944,785,235.10 = 399,990,876.20/x
  3. Step 3: Cross multiply
    629,856,823.40x = 944,785,235.10 × 399,990,876.20
  4. Step 4: Simplify right side
    629,856,823.40x = 377,905,474,008,472,000
  5. Step 5: Solve for x
    x = 377,905,474,008,472,000/629,856,823.40
  6. Step 6: Final answer
    x = 599,986,314.30

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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.