Home / 491,631,164.79-678,442,982.12-268,608,046.73

Finding the Fourth Proportional to 491,631,164.79, 678,442,982.12 and 268,608,046.73

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Solution

The fourth proportional to 491,631,164.79, 678,442,982.12 and 268,608,046.73 is: 370,674,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,631,164.79 : 678,442,982.12 = 268,608,046.73 : x
  2. Step 2: Convert to fraction form
    491,631,164.79/678,442,982.12 = 268,608,046.73/x
  3. Step 3: Cross multiply
    491,631,164.79x = 678,442,982.12 × 268,608,046.73
  4. Step 4: Simplify right side
    491,631,164.79x = 182,235,244,241,201,536
  5. Step 5: Solve for x
    x = 182,235,244,241,201,536/491,631,164.79
  6. Step 6: Final answer
    x = 370,674,719.78

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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.