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Finding the Third Proportional to 18,179,919 and 39,891,843

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Solution

The third proportional to 18,179,919 and 39,891,843 is: 87,533,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179,919 : 39,891,843 = 39,891,843 : x
  2. Step 2: Convert to fraction form
    18,179,919/39,891,843 = 39,891,843/x
  3. Step 3: Cross multiply
    18,179,919x = 39,891,843 × 39,891,843
  4. Step 4: Simplify right side
    18,179,919x = 1,591,359,137,936,649
  5. Step 5: Solve for x
    x = 1,591,359,137,936,649/18,179,919
  6. Step 6: Final answer
    x = 87,533,895.94

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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.