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Finding the Third Proportional to 7,220,722 and 15,858,691

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Solution

The third proportional to 7,220,722 and 15,858,691 is: 34,830,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,722 : 15,858,691 = 15,858,691 : x
  2. Step 2: Convert to fraction form
    7,220,722/15,858,691 = 15,858,691/x
  3. Step 3: Cross multiply
    7,220,722x = 15,858,691 × 15,858,691
  4. Step 4: Simplify right side
    7,220,722x = 251,498,080,233,481
  5. Step 5: Solve for x
    x = 251,498,080,233,481/7,220,722
  6. Step 6: Final answer
    x = 34,830,046.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.