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Finding the Third Proportional to 18,863,879 and 40,416,949

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Solution

The third proportional to 18,863,879 and 40,416,949 is: 86,595,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,879 : 40,416,949 = 40,416,949 : x
  2. Step 2: Convert to fraction form
    18,863,879/40,416,949 = 40,416,949/x
  3. Step 3: Cross multiply
    18,863,879x = 40,416,949 × 40,416,949
  4. Step 4: Simplify right side
    18,863,879x = 1,633,529,766,468,601
  5. Step 5: Solve for x
    x = 1,633,529,766,468,601/18,863,879
  6. Step 6: Final answer
    x = 86,595,644.85

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.