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Finding the Third Proportional to 220,942,521 and 331,413,782

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Solution

The third proportional to 220,942,521 and 331,413,782 is: 497,120,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,942,521 : 331,413,782 = 331,413,782 : x
  2. Step 2: Convert to fraction form
    220,942,521/331,413,782 = 331,413,782/x
  3. Step 3: Cross multiply
    220,942,521x = 331,413,782 × 331,413,782
  4. Step 4: Simplify right side
    220,942,521x = 109,835,094,899,543,520
  5. Step 5: Solve for x
    x = 109,835,094,899,543,520/220,942,521
  6. Step 6: Final answer
    x = 497,120,673.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.