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Finding the Third Proportional to 77,897,715 and 168,722,034.75

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Solution

The third proportional to 77,897,715 and 168,722,034.75 is: 365,442,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,897,715 : 168,722,034.75 = 168,722,034.75 : x
  2. Step 2: Convert to fraction form
    77,897,715/168,722,034.75 = 168,722,034.75/x
  3. Step 3: Cross multiply
    77,897,715x = 168,722,034.75 × 168,722,034.75
  4. Step 4: Simplify right side
    77,897,715x = 28,467,125,010,180,208
  5. Step 5: Solve for x
    x = 28,467,125,010,180,208/77,897,715
  6. Step 6: Final answer
    x = 365,442,362.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.