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Finding the Third Proportional to 71,913,420 and 158,485,086

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Solution

The third proportional to 71,913,420 and 158,485,086 is: 349,274,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913,420 : 158,485,086 = 158,485,086 : x
  2. Step 2: Convert to fraction form
    71,913,420/158,485,086 = 158,485,086/x
  3. Step 3: Cross multiply
    71,913,420x = 158,485,086 × 158,485,086
  4. Step 4: Simplify right side
    71,913,420x = 25,117,522,484,427,396
  5. Step 5: Solve for x
    x = 25,117,522,484,427,396/71,913,420
  6. Step 6: Final answer
    x = 349,274,481.51

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.