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Finding the Third Proportional to 11,781,387.75 and 18,306,858

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Solution

The third proportional to 11,781,387.75 and 18,306,858 is: 28,446,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781,387.75 : 18,306,858 = 18,306,858 : x
  2. Step 2: Convert to fraction form
    11,781,387.75/18,306,858 = 18,306,858/x
  3. Step 3: Cross multiply
    11,781,387.75x = 18,306,858 × 18,306,858
  4. Step 4: Simplify right side
    11,781,387.75x = 335,141,049,832,164
  5. Step 5: Solve for x
    x = 335,141,049,832,164/11,781,387.75
  6. Step 6: Final answer
    x = 28,446,653.06

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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.