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Finding the Third Proportional to 18,508,909.50 and 40,106,799

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Solution

The third proportional to 18,508,909.50 and 40,106,799 is: 86,907,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508,909.50 : 40,106,799 = 40,106,799 : x
  2. Step 2: Convert to fraction form
    18,508,909.50/40,106,799 = 40,106,799/x
  3. Step 3: Cross multiply
    18,508,909.50x = 40,106,799 × 40,106,799
  4. Step 4: Simplify right side
    18,508,909.50x = 1,608,555,326,026,401
  5. Step 5: Solve for x
    x = 1,608,555,326,026,401/18,508,909.50
  6. Step 6: Final answer
    x = 86,907,082.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.