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Finding the Third Proportional to 12,464,987 and 18,647,800.50

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Solution

The third proportional to 12,464,987 and 18,647,800.50 is: 27,897,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,464,987 : 18,647,800.50 = 18,647,800.50 : x
  2. Step 2: Convert to fraction form
    12,464,987/18,647,800.50 = 18,647,800.50/x
  3. Step 3: Cross multiply
    12,464,987x = 18,647,800.50 × 18,647,800.50
  4. Step 4: Simplify right side
    12,464,987x = 347,740,463,487,800.25
  5. Step 5: Solve for x
    x = 347,740,463,487,800.25/12,464,987
  6. Step 6: Final answer
    x = 27,897,378.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.