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Finding the Third Proportional to 7,420,780.31 and 11,351,859.47

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Solution

The third proportional to 7,420,780.31 and 11,351,859.47 is: 17,365,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420,780.31 : 11,351,859.47 = 11,351,859.47 : x
  2. Step 2: Convert to fraction form
    7,420,780.31/11,351,859.47 = 11,351,859.47/x
  3. Step 3: Cross multiply
    7,420,780.31x = 11,351,859.47 × 11,351,859.47
  4. Step 4: Simplify right side
    7,420,780.31x = 128,864,713,398,249.03
  5. Step 5: Solve for x
    x = 128,864,713,398,249.03/7,420,780.31
  6. Step 6: Final answer
    x = 17,365,385.85

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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.