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Finding the Third Proportional to 7,172,692 and 15,478,874

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Solution

The third proportional to 7,172,692 and 15,478,874 is: 33,403,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,692 : 15,478,874 = 15,478,874 : x
  2. Step 2: Convert to fraction form
    7,172,692/15,478,874 = 15,478,874/x
  3. Step 3: Cross multiply
    7,172,692x = 15,478,874 × 15,478,874
  4. Step 4: Simplify right side
    7,172,692x = 239,595,540,307,876
  5. Step 5: Solve for x
    x = 239,595,540,307,876/7,172,692
  6. Step 6: Final answer
    x = 33,403,851.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.