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Finding the Third Proportional to 12,171,581 and 18,836,847

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Solution

The third proportional to 12,171,581 and 18,836,847 is: 29,152,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171,581 : 18,836,847 = 18,836,847 : x
  2. Step 2: Convert to fraction form
    12,171,581/18,836,847 = 18,836,847/x
  3. Step 3: Cross multiply
    12,171,581x = 18,836,847 × 18,836,847
  4. Step 4: Simplify right side
    12,171,581x = 354,826,804,901,409
  5. Step 5: Solve for x
    x = 354,826,804,901,409/12,171,581
  6. Step 6: Final answer
    x = 29,152,071.94

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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.