Home / 331,469,920.80-497,204,881.20-280,451,584.80

Finding the Fourth Proportional to 331,469,920.80, 497,204,881.20 and 280,451,584.80

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Solution

The fourth proportional to 331,469,920.80, 497,204,881.20 and 280,451,584.80 is: 420,677,377.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,469,920.80 : 497,204,881.20 = 280,451,584.80 : x
  2. Step 2: Convert to fraction form
    331,469,920.80/497,204,881.20 = 280,451,584.80/x
  3. Step 3: Cross multiply
    331,469,920.80x = 497,204,881.20 × 280,451,584.80
  4. Step 4: Simplify right side
    331,469,920.80x = 139,441,896,902,835,728
  5. Step 5: Solve for x
    x = 139,441,896,902,835,728/331,469,920.80
  6. Step 6: Final answer
    x = 420,677,377.20

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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.