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Finding the Third Proportional to 18,773,969 and 38,986,780

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Solution

The third proportional to 18,773,969 and 38,986,780 is: 80,961,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773,969 : 38,986,780 = 38,986,780 : x
  2. Step 2: Convert to fraction form
    18,773,969/38,986,780 = 38,986,780/x
  3. Step 3: Cross multiply
    18,773,969x = 38,986,780 × 38,986,780
  4. Step 4: Simplify right side
    18,773,969x = 1,519,969,014,768,400
  5. Step 5: Solve for x
    x = 1,519,969,014,768,400/18,773,969
  6. Step 6: Final answer
    x = 80,961,517.24

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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.