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Finding the Third Proportional to 331,490,791.50 and 721,834,530

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Solution

The third proportional to 331,490,791.50 and 721,834,530 is: 1,571,823,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,490,791.50 : 721,834,530 = 721,834,530 : x
  2. Step 2: Convert to fraction form
    331,490,791.50/721,834,530 = 721,834,530/x
  3. Step 3: Cross multiply
    331,490,791.50x = 721,834,530 × 721,834,530
  4. Step 4: Simplify right side
    331,490,791.50x = 521,045,088,700,320,896
  5. Step 5: Solve for x
    x = 521,045,088,700,320,896/331,490,791.50
  6. Step 6: Final answer
    x = 1,571,823,718.97

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.