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Finding the Third Proportional to 84,687,487.50 and 129,465,216

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Solution

The third proportional to 84,687,487.50 and 129,465,216 is: 197,918,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,687,487.50 : 129,465,216 = 129,465,216 : x
  2. Step 2: Convert to fraction form
    84,687,487.50/129,465,216 = 129,465,216/x
  3. Step 3: Cross multiply
    84,687,487.50x = 129,465,216 × 129,465,216
  4. Step 4: Simplify right side
    84,687,487.50x = 16,761,242,153,926,656
  5. Step 5: Solve for x
    x = 16,761,242,153,926,656/84,687,487.50
  6. Step 6: Final answer
    x = 197,918,755.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.