Home / 83,649,073.70-125,473,610.55-66,430,385.30

Finding the Fourth Proportional to 83,649,073.70, 125,473,610.55 and 66,430,385.30

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Solution

The fourth proportional to 83,649,073.70, 125,473,610.55 and 66,430,385.30 is: 99,645,577.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,649,073.70 : 125,473,610.55 = 66,430,385.30 : x
  2. Step 2: Convert to fraction form
    83,649,073.70/125,473,610.55 = 66,430,385.30/x
  3. Step 3: Cross multiply
    83,649,073.70x = 125,473,610.55 × 66,430,385.30
  4. Step 4: Simplify right side
    83,649,073.70x = 8,335,260,293,818,644
  5. Step 5: Solve for x
    x = 8,335,260,293,818,644/83,649,073.70
  6. Step 6: Final answer
    x = 99,645,577.95

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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.