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Finding the Third Proportional to 18,521,750 and 20,736,086

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Solution

The third proportional to 18,521,750 and 20,736,086 is: 23,215,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521,750 : 20,736,086 = 20,736,086 : x
  2. Step 2: Convert to fraction form
    18,521,750/20,736,086 = 20,736,086/x
  3. Step 3: Cross multiply
    18,521,750x = 20,736,086 × 20,736,086
  4. Step 4: Simplify right side
    18,521,750x = 429,985,262,599,396
  5. Step 5: Solve for x
    x = 429,985,262,599,396/18,521,750
  6. Step 6: Final answer
    x = 23,215,153.14

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.