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Finding the Third Proportional to 3,540,658.50 and 5,289,121.13

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Solution

The third proportional to 3,540,658.50 and 5,289,121.13 is: 7,901,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540,658.50 : 5,289,121.13 = 5,289,121.13 : x
  2. Step 2: Convert to fraction form
    3,540,658.50/5,289,121.13 = 5,289,121.13/x
  3. Step 3: Cross multiply
    3,540,658.50x = 5,289,121.13 × 5,289,121.13
  4. Step 4: Simplify right side
    3,540,658.50x = 27,974,802,274,921.27
  5. Step 5: Solve for x
    x = 27,974,802,274,921.27/3,540,658.50
  6. Step 6: Final answer
    x = 7,901,016.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.