Home / 83,555,646.40-125,333,469.60-65,415,793.60

Finding the Fourth Proportional to 83,555,646.40, 125,333,469.60 and 65,415,793.60

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Solution

The fourth proportional to 83,555,646.40, 125,333,469.60 and 65,415,793.60 is: 98,123,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,555,646.40 : 125,333,469.60 = 65,415,793.60 : x
  2. Step 2: Convert to fraction form
    83,555,646.40/125,333,469.60 = 65,415,793.60/x
  3. Step 3: Cross multiply
    83,555,646.40x = 125,333,469.60 × 65,415,793.60
  4. Step 4: Simplify right side
    83,555,646.40x = 8,198,788,378,525,474
  5. Step 5: Solve for x
    x = 8,198,788,378,525,474/83,555,646.40
  6. Step 6: Final answer
    x = 98,123,690.40

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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.