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Finding the Third Proportional to 61,808,463 and 128,703,500

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Solution

The third proportional to 61,808,463 and 128,703,500 is: 267,998,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808,463 : 128,703,500 = 128,703,500 : x
  2. Step 2: Convert to fraction form
    61,808,463/128,703,500 = 128,703,500/x
  3. Step 3: Cross multiply
    61,808,463x = 128,703,500 × 128,703,500
  4. Step 4: Simplify right side
    61,808,463x = 16,564,590,912,250,000
  5. Step 5: Solve for x
    x = 16,564,590,912,250,000/61,808,463
  6. Step 6: Final answer
    x = 267,998,751.44

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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.