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Finding the Third Proportional to 12,206,730 and 18,884,067

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Solution

The third proportional to 12,206,730 and 18,884,067 is: 29,214,047.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206,730 : 18,884,067 = 18,884,067 : x
  2. Step 2: Convert to fraction form
    12,206,730/18,884,067 = 18,884,067/x
  3. Step 3: Cross multiply
    12,206,730x = 18,884,067 × 18,884,067
  4. Step 4: Simplify right side
    12,206,730x = 356,607,986,460,489
  5. Step 5: Solve for x
    x = 356,607,986,460,489/12,206,730
  6. Step 6: Final answer
    x = 29,214,047.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.