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Finding the Third Proportional to 6,418,620 and 9,970,722

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Solution

The third proportional to 6,418,620 and 9,970,722 is: 15,488,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418,620 : 9,970,722 = 9,970,722 : x
  2. Step 2: Convert to fraction form
    6,418,620/9,970,722 = 9,970,722/x
  3. Step 3: Cross multiply
    6,418,620x = 9,970,722 × 9,970,722
  4. Step 4: Simplify right side
    6,418,620x = 99,415,297,201,284
  5. Step 5: Solve for x
    x = 99,415,297,201,284/6,418,620
  6. Step 6: Final answer
    x = 15,488,578.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.