Home / 11,811,781.97-18,221,366.39

Finding the Third Proportional to 11,811,781.97 and 18,221,366.39

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Solution

The third proportional to 11,811,781.97 and 18,221,366.39 is: 28,109,068.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811,781.97 : 18,221,366.39 = 18,221,366.39 : x
  2. Step 2: Convert to fraction form
    11,811,781.97/18,221,366.39 = 18,221,366.39/x
  3. Step 3: Cross multiply
    11,811,781.97x = 18,221,366.39 × 18,221,366.39
  4. Step 4: Simplify right side
    11,811,781.97x = 332,018,193,141,398.31
  5. Step 5: Solve for x
    x = 332,018,193,141,398.31/11,811,781.97
  6. Step 6: Final answer
    x = 28,109,068.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.