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Finding the Third Proportional to 6,720,821 and 10,205,891

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Solution

The third proportional to 6,720,821 and 10,205,891 is: 15,498,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720,821 : 10,205,891 = 10,205,891 : x
  2. Step 2: Convert to fraction form
    6,720,821/10,205,891 = 10,205,891/x
  3. Step 3: Cross multiply
    6,720,821x = 10,205,891 × 10,205,891
  4. Step 4: Simplify right side
    6,720,821x = 104,160,211,103,881
  5. Step 5: Solve for x
    x = 104,160,211,103,881/6,720,821
  6. Step 6: Final answer
    x = 15,498,137.97

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.