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Finding the Third Proportional to 12,260,331 and 18,390,469

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Solution

The third proportional to 12,260,331 and 18,390,469 is: 27,585,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260,331 : 18,390,469 = 18,390,469 : x
  2. Step 2: Convert to fraction form
    12,260,331/18,390,469 = 18,390,469/x
  3. Step 3: Cross multiply
    12,260,331x = 18,390,469 × 18,390,469
  4. Step 4: Simplify right side
    12,260,331x = 338,209,350,039,961
  5. Step 5: Solve for x
    x = 338,209,350,039,961/12,260,331
  6. Step 6: Final answer
    x = 27,585,662.25

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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.