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Finding the Third Proportional to 17,687,928 and 38,081,904

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Solution

The third proportional to 17,687,928 and 38,081,904 is: 81,989,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687,928 : 38,081,904 = 38,081,904 : x
  2. Step 2: Convert to fraction form
    17,687,928/38,081,904 = 38,081,904/x
  3. Step 3: Cross multiply
    17,687,928x = 38,081,904 × 38,081,904
  4. Step 4: Simplify right side
    17,687,928x = 1,450,231,412,265,216
  5. Step 5: Solve for x
    x = 1,450,231,412,265,216/17,687,928
  6. Step 6: Final answer
    x = 81,989,897.98

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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.