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Finding the Third Proportional to 185,722,139 and 279,051,209

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Solution

The third proportional to 185,722,139 and 279,051,209 is: 419,279,993.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,722,139 : 279,051,209 = 279,051,209 : x
  2. Step 2: Convert to fraction form
    185,722,139/279,051,209 = 279,051,209/x
  3. Step 3: Cross multiply
    185,722,139x = 279,051,209 × 279,051,209
  4. Step 4: Simplify right side
    185,722,139x = 77,869,577,244,361,680
  5. Step 5: Solve for x
    x = 77,869,577,244,361,680/185,722,139
  6. Step 6: Final answer
    x = 419,279,993.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.