Home / 491,805,447.74-678,692,179.23-282,957,401.60

Finding the Fourth Proportional to 491,805,447.74, 678,692,179.23 and 282,957,401.60

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Solution

The fourth proportional to 491,805,447.74, 678,692,179.23 and 282,957,401.60 is: 390,481,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,447.74 : 678,692,179.23 = 282,957,401.60 : x
  2. Step 2: Convert to fraction form
    491,805,447.74/678,692,179.23 = 282,957,401.60/x
  3. Step 3: Cross multiply
    491,805,447.74x = 678,692,179.23 × 282,957,401.60
  4. Step 4: Simplify right side
    491,805,447.74x = 192,040,975,521,162,304
  5. Step 5: Solve for x
    x = 192,040,975,521,162,304/491,805,447.74
  6. Step 6: Final answer
    x = 390,481,594.71

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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.