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Finding the Third Proportional to 8,431,317 and 18,141,402

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Solution

The third proportional to 8,431,317 and 18,141,402 is: 39,034,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431,317 : 18,141,402 = 18,141,402 : x
  2. Step 2: Convert to fraction form
    8,431,317/18,141,402 = 18,141,402/x
  3. Step 3: Cross multiply
    8,431,317x = 18,141,402 × 18,141,402
  4. Step 4: Simplify right side
    8,431,317x = 329,110,466,525,604
  5. Step 5: Solve for x
    x = 329,110,466,525,604/8,431,317
  6. Step 6: Final answer
    x = 39,034,289.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.