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Finding the Third Proportional to 187,981,992 and 287,377,248

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Solution

The third proportional to 187,981,992 and 287,377,248 is: 439,327,628.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,981,992 : 287,377,248 = 287,377,248 : x
  2. Step 2: Convert to fraction form
    187,981,992/287,377,248 = 287,377,248/x
  3. Step 3: Cross multiply
    187,981,992x = 287,377,248 × 287,377,248
  4. Step 4: Simplify right side
    187,981,992x = 82,585,682,668,053,504
  5. Step 5: Solve for x
    x = 82,585,682,668,053,504/187,981,992
  6. Step 6: Final answer
    x = 439,327,628.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.