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Finding the Fourth Proportional to 94,747,187.80, 142,120,781.70 and 80,876,577.70

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Solution

The fourth proportional to 94,747,187.80, 142,120,781.70 and 80,876,577.70 is: 121,314,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,747,187.80 : 142,120,781.70 = 80,876,577.70 : x
  2. Step 2: Convert to fraction form
    94,747,187.80/142,120,781.70 = 80,876,577.70/x
  3. Step 3: Cross multiply
    94,747,187.80x = 142,120,781.70 × 80,876,577.70
  4. Step 4: Simplify right side
    94,747,187.80x = 11,494,242,443,944,788
  5. Step 5: Solve for x
    x = 11,494,242,443,944,788/94,747,187.80
  6. Step 6: Final answer
    x = 121,314,866.55

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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.