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Finding the Fourth Proportional to 145,659,602.80, 218,489,404.20 and 88,122,257.20

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Solution

The fourth proportional to 145,659,602.80, 218,489,404.20 and 88,122,257.20 is: 132,183,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,659,602.80 : 218,489,404.20 = 88,122,257.20 : x
  2. Step 2: Convert to fraction form
    145,659,602.80/218,489,404.20 = 88,122,257.20/x
  3. Step 3: Cross multiply
    145,659,602.80x = 218,489,404.20 × 88,122,257.20
  4. Step 4: Simplify right side
    145,659,602.80x = 19,253,779,472,387,160
  5. Step 5: Solve for x
    x = 19,253,779,472,387,160/145,659,602.80
  6. Step 6: Final answer
    x = 132,183,385.80

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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.