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Finding the Third Proportional to 15,603,631 and 20,704,350

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Solution

The third proportional to 15,603,631 and 20,704,350 is: 27,472,458.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603,631 : 20,704,350 = 20,704,350 : x
  2. Step 2: Convert to fraction form
    15,603,631/20,704,350 = 20,704,350/x
  3. Step 3: Cross multiply
    15,603,631x = 20,704,350 × 20,704,350
  4. Step 4: Simplify right side
    15,603,631x = 428,670,108,922,500
  5. Step 5: Solve for x
    x = 428,670,108,922,500/15,603,631
  6. Step 6: Final answer
    x = 27,472,458.75

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.