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Finding the Third Proportional to 6,620,220 and 10,122,718

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Solution

The third proportional to 6,620,220 and 10,122,718 is: 15,478,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620,220 : 10,122,718 = 10,122,718 : x
  2. Step 2: Convert to fraction form
    6,620,220/10,122,718 = 10,122,718/x
  3. Step 3: Cross multiply
    6,620,220x = 10,122,718 × 10,122,718
  4. Step 4: Simplify right side
    6,620,220x = 102,469,419,707,524
  5. Step 5: Solve for x
    x = 102,469,419,707,524/6,620,220
  6. Step 6: Final answer
    x = 15,478,249.92

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Why These Related Problems?

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