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Finding the Third Proportional to 81,211,670 and 175,367,072

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Solution

The third proportional to 81,211,670 and 175,367,072 is: 378,684,614.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,211,670 : 175,367,072 = 175,367,072 : x
  2. Step 2: Convert to fraction form
    81,211,670/175,367,072 = 175,367,072/x
  3. Step 3: Cross multiply
    81,211,670x = 175,367,072 × 175,367,072
  4. Step 4: Simplify right side
    81,211,670x = 30,753,609,941,853,184
  5. Step 5: Solve for x
    x = 30,753,609,941,853,184/81,211,670
  6. Step 6: Final answer
    x = 378,684,614.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.