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Finding the Third Proportional to 61,808,483.56 and 128,703,542.55

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Solution

The third proportional to 61,808,483.56 and 128,703,542.55 is: 267,998,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808,483.56 : 128,703,542.55 = 128,703,542.55 : x
  2. Step 2: Convert to fraction form
    61,808,483.56/128,703,542.55 = 128,703,542.55/x
  3. Step 3: Cross multiply
    61,808,483.56x = 128,703,542.55 × 128,703,542.55
  4. Step 4: Simplify right side
    61,808,483.56x = 16,564,601,863,864,292
  5. Step 5: Solve for x
    x = 16,564,601,863,864,292/61,808,483.56
  6. Step 6: Final answer
    x = 267,998,839.49

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.