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Finding the Third Proportional to 54,538,186 and 86,822,919

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Solution

The third proportional to 54,538,186 and 86,822,919 is: 138,219,105.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,538,186 : 86,822,919 = 86,822,919 : x
  2. Step 2: Convert to fraction form
    54,538,186/86,822,919 = 86,822,919/x
  3. Step 3: Cross multiply
    54,538,186x = 86,822,919 × 86,822,919
  4. Step 4: Simplify right side
    54,538,186x = 7,538,219,263,680,561
  5. Step 5: Solve for x
    x = 7,538,219,263,680,561/54,538,186
  6. Step 6: Final answer
    x = 138,219,105.12

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.