Home / 568,391,972.55-784,382,137.71-320,873,326.80

Finding the Fourth Proportional to 568,391,972.55, 784,382,137.71 and 320,873,326.80

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Solution

The fourth proportional to 568,391,972.55, 784,382,137.71 and 320,873,326.80 is: 442,805,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,391,972.55 : 784,382,137.71 = 320,873,326.80 : x
  2. Step 2: Convert to fraction form
    568,391,972.55/784,382,137.71 = 320,873,326.80/x
  3. Step 3: Cross multiply
    568,391,972.55x = 784,382,137.71 × 320,873,326.80
  4. Step 4: Simplify right side
    568,391,972.55x = 251,687,306,009,503,456
  5. Step 5: Solve for x
    x = 251,687,306,009,503,456/568,391,972.55
  6. Step 6: Final answer
    x = 442,805,877.22

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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.