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Finding the Third Proportional to 7,728,438 and 16,949,860

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Solution

The third proportional to 7,728,438 and 16,949,860 is: 37,174,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,438 : 16,949,860 = 16,949,860 : x
  2. Step 2: Convert to fraction form
    7,728,438/16,949,860 = 16,949,860/x
  3. Step 3: Cross multiply
    7,728,438x = 16,949,860 × 16,949,860
  4. Step 4: Simplify right side
    7,728,438x = 287,297,754,019,600
  5. Step 5: Solve for x
    x = 287,297,754,019,600/7,728,438
  6. Step 6: Final answer
    x = 37,174,103.49

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.