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Finding the Third Proportional to 80,437,466 and 172,211,908

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Solution

The third proportional to 80,437,466 and 172,211,908 is: 368,695,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,437,466 : 172,211,908 = 172,211,908 : x
  2. Step 2: Convert to fraction form
    80,437,466/172,211,908 = 172,211,908/x
  3. Step 3: Cross multiply
    80,437,466x = 172,211,908 × 172,211,908
  4. Step 4: Simplify right side
    80,437,466x = 29,656,941,257,000,464
  5. Step 5: Solve for x
    x = 29,656,941,257,000,464/80,437,466
  6. Step 6: Final answer
    x = 368,695,618.25

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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.