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Finding the Third Proportional to 8,639,458 and 18,561,037

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Solution

The third proportional to 8,639,458 and 18,561,037 is: 39,876,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639,458 : 18,561,037 = 18,561,037 : x
  2. Step 2: Convert to fraction form
    8,639,458/18,561,037 = 18,561,037/x
  3. Step 3: Cross multiply
    8,639,458x = 18,561,037 × 18,561,037
  4. Step 4: Simplify right side
    8,639,458x = 344,512,094,515,369
  5. Step 5: Solve for x
    x = 344,512,094,515,369/8,639,458
  6. Step 6: Final answer
    x = 39,876,586.53

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.