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Finding the Third Proportional to 20,992,581 and 43,661,079

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Solution

The third proportional to 20,992,581 and 43,661,079 is: 90,807,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992,581 : 43,661,079 = 43,661,079 : x
  2. Step 2: Convert to fraction form
    20,992,581/43,661,079 = 43,661,079/x
  3. Step 3: Cross multiply
    20,992,581x = 43,661,079 × 43,661,079
  4. Step 4: Simplify right side
    20,992,581x = 1,906,289,819,444,241
  5. Step 5: Solve for x
    x = 1,906,289,819,444,241/20,992,581
  6. Step 6: Final answer
    x = 90,807,786.78

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.