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Finding the Third Proportional to 79,654,781 and 123,019,671

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Solution

The third proportional to 79,654,781 and 123,019,671 is: 189,992,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,654,781 : 123,019,671 = 123,019,671 : x
  2. Step 2: Convert to fraction form
    79,654,781/123,019,671 = 123,019,671/x
  3. Step 3: Cross multiply
    79,654,781x = 123,019,671 × 123,019,671
  4. Step 4: Simplify right side
    79,654,781x = 15,133,839,452,948,240
  5. Step 5: Solve for x
    x = 15,133,839,452,948,240/79,654,781
  6. Step 6: Final answer
    x = 189,992,857.47

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.