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Finding the Third Proportional to 4,040,121.38 and 8,721,216

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Solution

The third proportional to 4,040,121.38 and 8,721,216 is: 18,826,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040,121.38 : 8,721,216 = 8,721,216 : x
  2. Step 2: Convert to fraction form
    4,040,121.38/8,721,216 = 8,721,216/x
  3. Step 3: Cross multiply
    4,040,121.38x = 8,721,216 × 8,721,216
  4. Step 4: Simplify right side
    4,040,121.38x = 76,059,608,518,656
  5. Step 5: Solve for x
    x = 76,059,608,518,656/4,040,121.38
  6. Step 6: Final answer
    x = 18,826,070.17

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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.