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Finding the Third Proportional to 4,040,366 and 8,721,656

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Solution

The third proportional to 4,040,366 and 8,721,656 is: 18,826,829.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040,366 : 8,721,656 = 8,721,656 : x
  2. Step 2: Convert to fraction form
    4,040,366/8,721,656 = 8,721,656/x
  3. Step 3: Cross multiply
    4,040,366x = 8,721,656 × 8,721,656
  4. Step 4: Simplify right side
    4,040,366x = 76,067,283,382,336
  5. Step 5: Solve for x
    x = 76,067,283,382,336/4,040,366
  6. Step 6: Final answer
    x = 18,826,829.89

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.