Home / 624,300,326.78-861,424,939.62-356,253,775.95

Finding the Fourth Proportional to 624,300,326.78, 861,424,939.62 and 356,253,775.95

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Solution

The fourth proportional to 624,300,326.78, 861,424,939.62 and 356,253,775.95 is: 491,567,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,300,326.78 : 861,424,939.62 = 356,253,775.95 : x
  2. Step 2: Convert to fraction form
    624,300,326.78/861,424,939.62 = 356,253,775.95/x
  3. Step 3: Cross multiply
    624,300,326.78x = 861,424,939.62 × 356,253,775.95
  4. Step 4: Simplify right side
    624,300,326.78x = 306,885,887,436,530,176
  5. Step 5: Solve for x
    x = 306,885,887,436,530,176/624,300,326.78
  6. Step 6: Final answer
    x = 491,567,718.73

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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.