Home / 568,391,963.54-784,382,125.30-320,873,317.79

Finding the Fourth Proportional to 568,391,963.54, 784,382,125.30 and 320,873,317.79

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Solution

The fourth proportional to 568,391,963.54, 784,382,125.30 and 320,873,317.79 is: 442,805,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,391,963.54 : 784,382,125.30 = 320,873,317.79 : x
  2. Step 2: Convert to fraction form
    568,391,963.54/784,382,125.30 = 320,873,317.79/x
  3. Step 3: Cross multiply
    568,391,963.54x = 784,382,125.30 × 320,873,317.79
  4. Step 4: Simplify right side
    568,391,963.54x = 251,687,294,955,458,432
  5. Step 5: Solve for x
    x = 251,687,294,955,458,432/568,391,963.54
  6. Step 6: Final answer
    x = 442,805,864.79

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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.