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Finding the Third Proportional to 18,028,653 and 38,790,981

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Solution

The third proportional to 18,028,653 and 38,790,981 is: 83,463,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028,653 : 38,790,981 = 38,790,981 : x
  2. Step 2: Convert to fraction form
    18,028,653/38,790,981 = 38,790,981/x
  3. Step 3: Cross multiply
    18,028,653x = 38,790,981 × 38,790,981
  4. Step 4: Simplify right side
    18,028,653x = 1,504,740,206,942,361
  5. Step 5: Solve for x
    x = 1,504,740,206,942,361/18,028,653
  6. Step 6: Final answer
    x = 83,463,817.68

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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.