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Finding the Third Proportional to 181,489,384 and 278,962,188

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Solution

The third proportional to 181,489,384 and 278,962,188 is: 428,784,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,489,384 : 278,962,188 = 278,962,188 : x
  2. Step 2: Convert to fraction form
    181,489,384/278,962,188 = 278,962,188/x
  3. Step 3: Cross multiply
    181,489,384x = 278,962,188 × 278,962,188
  4. Step 4: Simplify right side
    181,489,384x = 77,819,902,333,747,344
  5. Step 5: Solve for x
    x = 77,819,902,333,747,344/181,489,384
  6. Step 6: Final answer
    x = 428,784,872.25

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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.