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Finding the Third Proportional to 4,040,370 and 8,721,666

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Solution

The third proportional to 4,040,370 and 8,721,666 is: 18,826,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040,370 : 8,721,666 = 8,721,666 : x
  2. Step 2: Convert to fraction form
    4,040,370/8,721,666 = 8,721,666/x
  3. Step 3: Cross multiply
    4,040,370x = 8,721,666 × 8,721,666
  4. Step 4: Simplify right side
    4,040,370x = 76,067,457,815,556
  5. Step 5: Solve for x
    x = 76,067,457,815,556/4,040,370
  6. Step 6: Final answer
    x = 18,826,854.43

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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.