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Finding the Third Proportional to 66,275,449 and 139,419,034

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Solution

The third proportional to 66,275,449 and 139,419,034 is: 293,286,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,275,449 : 139,419,034 = 139,419,034 : x
  2. Step 2: Convert to fraction form
    66,275,449/139,419,034 = 139,419,034/x
  3. Step 3: Cross multiply
    66,275,449x = 139,419,034 × 139,419,034
  4. Step 4: Simplify right side
    66,275,449x = 19,437,667,041,493,156
  5. Step 5: Solve for x
    x = 19,437,667,041,493,156/66,275,449
  6. Step 6: Final answer
    x = 293,286,086.10

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.