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Finding the Third Proportional to 18,257,418 and 38,551,986

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Solution

The third proportional to 18,257,418 and 38,551,986 is: 81,405,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257,418 : 38,551,986 = 38,551,986 : x
  2. Step 2: Convert to fraction form
    18,257,418/38,551,986 = 38,551,986/x
  3. Step 3: Cross multiply
    18,257,418x = 38,551,986 × 38,551,986
  4. Step 4: Simplify right side
    18,257,418x = 1,486,255,624,544,196
  5. Step 5: Solve for x
    x = 1,486,255,624,544,196/18,257,418
  6. Step 6: Final answer
    x = 81,405,575.78

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.