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Finding the Third Proportional to 12,171,579 and 18,836,844

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Solution

The third proportional to 12,171,579 and 18,836,844 is: 29,152,067.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171,579 : 18,836,844 = 18,836,844 : x
  2. Step 2: Convert to fraction form
    12,171,579/18,836,844 = 18,836,844/x
  3. Step 3: Cross multiply
    12,171,579x = 18,836,844 × 18,836,844
  4. Step 4: Simplify right side
    12,171,579x = 354,826,691,880,336
  5. Step 5: Solve for x
    x = 354,826,691,880,336/12,171,579
  6. Step 6: Final answer
    x = 29,152,067.44

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.