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Finding the Third Proportional to 12,890,748 and 18,642,291

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Solution

The third proportional to 12,890,748 and 18,642,291 is: 26,960,034.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,748 : 18,642,291 = 18,642,291 : x
  2. Step 2: Convert to fraction form
    12,890,748/18,642,291 = 18,642,291/x
  3. Step 3: Cross multiply
    12,890,748x = 18,642,291 × 18,642,291
  4. Step 4: Simplify right side
    12,890,748x = 347,535,013,728,681
  5. Step 5: Solve for x
    x = 347,535,013,728,681/12,890,748
  6. Step 6: Final answer
    x = 26,960,034.73

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.