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Finding the Third Proportional to 12,616,855 and 18,904,213

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Solution

The third proportional to 12,616,855 and 18,904,213 is: 28,324,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616,855 : 18,904,213 = 18,904,213 : x
  2. Step 2: Convert to fraction form
    12,616,855/18,904,213 = 18,904,213/x
  3. Step 3: Cross multiply
    12,616,855x = 18,904,213 × 18,904,213
  4. Step 4: Simplify right side
    12,616,855x = 357,369,269,149,369
  5. Step 5: Solve for x
    x = 357,369,269,149,369/12,616,855
  6. Step 6: Final answer
    x = 28,324,750.43

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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.