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Finding the Third Proportional to 12,539,666 and 18,760,899

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Solution

The third proportional to 12,539,666 and 18,760,899 is: 28,068,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539,666 : 18,760,899 = 18,760,899 : x
  2. Step 2: Convert to fraction form
    12,539,666/18,760,899 = 18,760,899/x
  3. Step 3: Cross multiply
    12,539,666x = 18,760,899 × 18,760,899
  4. Step 4: Simplify right side
    12,539,666x = 351,971,331,288,201
  5. Step 5: Solve for x
    x = 351,971,331,288,201/12,539,666
  6. Step 6: Final answer
    x = 28,068,636.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.