Home / 491,805,445.74-678,692,176.47-282,957,399.60

Finding the Fourth Proportional to 491,805,445.74, 678,692,176.47 and 282,957,399.60

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Solution

The fourth proportional to 491,805,445.74, 678,692,176.47 and 282,957,399.60 is: 390,481,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,445.74 : 678,692,176.47 = 282,957,399.60 : x
  2. Step 2: Convert to fraction form
    491,805,445.74/678,692,176.47 = 282,957,399.60/x
  3. Step 3: Cross multiply
    491,805,445.74x = 678,692,176.47 × 282,957,399.60
  4. Step 4: Simplify right side
    491,805,445.74x = 192,040,973,382,815,520
  5. Step 5: Solve for x
    x = 192,040,973,382,815,520/491,805,445.74
  6. Step 6: Final answer
    x = 390,481,591.95

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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.