Home / 568,169,789.88-783,851,220.82-329,974,426.38

Finding the Fourth Proportional to 568,169,789.88, 783,851,220.82 and 329,974,426.38

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Solution

The fourth proportional to 568,169,789.88, 783,851,220.82 and 329,974,426.38 is: 455,235,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,169,789.88 : 783,851,220.82 = 329,974,426.38 : x
  2. Step 2: Convert to fraction form
    568,169,789.88/783,851,220.82 = 329,974,426.38/x
  3. Step 3: Cross multiply
    568,169,789.88x = 783,851,220.82 × 329,974,426.38
  4. Step 4: Simplify right side
    568,169,789.88x = 258,650,856,957,342,240
  5. Step 5: Solve for x
    x = 258,650,856,957,342,240/568,169,789.88
  6. Step 6: Final answer
    x = 455,235,145.49

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1.5x scale

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.