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Finding the Fourth Proportional to 137,801,404.70, 206,702,107.05 and 40,748,468.30

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Solution

The fourth proportional to 137,801,404.70, 206,702,107.05 and 40,748,468.30 is: 61,122,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,801,404.70 : 206,702,107.05 = 40,748,468.30 : x
  2. Step 2: Convert to fraction form
    137,801,404.70/206,702,107.05 = 40,748,468.30/x
  3. Step 3: Cross multiply
    137,801,404.70x = 206,702,107.05 × 40,748,468.30
  4. Step 4: Simplify right side
    137,801,404.70x = 8,422,794,256,670,131
  5. Step 5: Solve for x
    x = 8,422,794,256,670,131/137,801,404.70
  6. Step 6: Final answer
    x = 61,122,702.45

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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.