Home / 1,293,682,891.59-1,786,755,029.70-869,560,221

Finding the Fourth Proportional to 1,293,682,891.59, 1,786,755,029.70 and 869,560,221

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Solution

The fourth proportional to 1,293,682,891.59, 1,786,755,029.70 and 869,560,221 is: 1,200,982,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,682,891.59 : 1,786,755,029.70 = 869,560,221 : x
  2. Step 2: Convert to fraction form
    1,293,682,891.59/1,786,755,029.70 = 869,560,221/x
  3. Step 3: Cross multiply
    1,293,682,891.59x = 1,786,755,029.70 × 869,560,221
  4. Step 4: Simplify right side
    1,293,682,891.59x = 1,553,691,098,498,793,728
  5. Step 5: Solve for x
    x = 1,553,691,098,498,793,728/1,293,682,891.59
  6. Step 6: Final answer
    x = 1,200,982,952.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.