Home / 338,979,344.80-508,469,017.20-262,451,840.80

Finding the Fourth Proportional to 338,979,344.80, 508,469,017.20 and 262,451,840.80

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Solution

The fourth proportional to 338,979,344.80, 508,469,017.20 and 262,451,840.80 is: 393,677,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,979,344.80 : 508,469,017.20 = 262,451,840.80 : x
  2. Step 2: Convert to fraction form
    338,979,344.80/508,469,017.20 = 262,451,840.80/x
  3. Step 3: Cross multiply
    338,979,344.80x = 508,469,017.20 × 262,451,840.80
  4. Step 4: Simplify right side
    338,979,344.80x = 133,448,629,553,906,864
  5. Step 5: Solve for x
    x = 133,448,629,553,906,864/338,979,344.80
  6. Step 6: Final answer
    x = 393,677,761.20

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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.