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Finding the Third Proportional to 78,163,938 and 167,062,218

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Solution

The third proportional to 78,163,938 and 167,062,218 is: 357,067,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,163,938 : 167,062,218 = 167,062,218 : x
  2. Step 2: Convert to fraction form
    78,163,938/167,062,218 = 167,062,218/x
  3. Step 3: Cross multiply
    78,163,938x = 167,062,218 × 167,062,218
  4. Step 4: Simplify right side
    78,163,938x = 27,909,784,683,079,524
  5. Step 5: Solve for x
    x = 27,909,784,683,079,524/78,163,938
  6. Step 6: Final answer
    x = 357,067,279.33

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.