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Finding the Third Proportional to 9,419,912 and 20,283,218

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Solution

The third proportional to 9,419,912 and 20,283,218 is: 43,674,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,912 : 20,283,218 = 20,283,218 : x
  2. Step 2: Convert to fraction form
    9,419,912/20,283,218 = 20,283,218/x
  3. Step 3: Cross multiply
    9,419,912x = 20,283,218 × 20,283,218
  4. Step 4: Simplify right side
    9,419,912x = 411,408,932,435,524
  5. Step 5: Solve for x
    x = 411,408,932,435,524/9,419,912
  6. Step 6: Final answer
    x = 43,674,392.33

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.