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Finding the Third Proportional to 81,807,478 and 181,775,060

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Solution

The third proportional to 81,807,478 and 181,775,060 is: 403,901,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,807,478 : 181,775,060 = 181,775,060 : x
  2. Step 2: Convert to fraction form
    81,807,478/181,775,060 = 181,775,060/x
  3. Step 3: Cross multiply
    81,807,478x = 181,775,060 × 181,775,060
  4. Step 4: Simplify right side
    81,807,478x = 33,042,172,438,003,600
  5. Step 5: Solve for x
    x = 33,042,172,438,003,600/81,807,478
  6. Step 6: Final answer
    x = 403,901,614.45

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.