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Finding the Fourth Proportional to 88,019,793.60, 132,029,690.40 and 84,287,896.80

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Solution

The fourth proportional to 88,019,793.60, 132,029,690.40 and 84,287,896.80 is: 126,431,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,019,793.60 : 132,029,690.40 = 84,287,896.80 : x
  2. Step 2: Convert to fraction form
    88,019,793.60/132,029,690.40 = 84,287,896.80/x
  3. Step 3: Cross multiply
    88,019,793.60x = 132,029,690.40 × 84,287,896.80
  4. Step 4: Simplify right side
    88,019,793.60x = 11,128,504,918,971,150
  5. Step 5: Solve for x
    x = 11,128,504,918,971,150/88,019,793.60
  6. Step 6: Final answer
    x = 126,431,845.20

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Similar ratio
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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.