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Finding the Third Proportional to 18,979,758 and 39,305,304

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Solution

The third proportional to 18,979,758 and 39,305,304 is: 81,397,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979,758 : 39,305,304 = 39,305,304 : x
  2. Step 2: Convert to fraction form
    18,979,758/39,305,304 = 39,305,304/x
  3. Step 3: Cross multiply
    18,979,758x = 39,305,304 × 39,305,304
  4. Step 4: Simplify right side
    18,979,758x = 1,544,906,922,532,416
  5. Step 5: Solve for x
    x = 1,544,906,922,532,416/18,979,758
  6. Step 6: Final answer
    x = 81,397,609.10

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.