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Finding the Fourth Proportional to 284,337,221.88, 426,505,832.82 and 68,926,469.88

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Solution

The fourth proportional to 284,337,221.88, 426,505,832.82 and 68,926,469.88 is: 103,389,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,337,221.88 : 426,505,832.82 = 68,926,469.88 : x
  2. Step 2: Convert to fraction form
    284,337,221.88/426,505,832.82 = 68,926,469.88/x
  3. Step 3: Cross multiply
    284,337,221.88x = 426,505,832.82 × 68,926,469.88
  4. Step 4: Simplify right side
    284,337,221.88x = 29,397,541,439,512,044
  5. Step 5: Solve for x
    x = 29,397,541,439,512,044/284,337,221.88
  6. Step 6: Final answer
    x = 103,389,704.82

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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.