Home / 274,617,488.85-378,611,519.40-198,171,596.54

Finding the Fourth Proportional to 274,617,488.85, 378,611,519.40 and 198,171,596.54

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Solution

The fourth proportional to 274,617,488.85, 378,611,519.40 and 198,171,596.54 is: 273,216,573.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,617,488.85 : 378,611,519.40 = 198,171,596.54 : x
  2. Step 2: Convert to fraction form
    274,617,488.85/378,611,519.40 = 198,171,596.54/x
  3. Step 3: Cross multiply
    274,617,488.85x = 378,611,519.40 × 198,171,596.54
  4. Step 4: Simplify right side
    274,617,488.85x = 75,030,049,266,040,112
  5. Step 5: Solve for x
    x = 75,030,049,266,040,112/274,617,488.85
  6. Step 6: Final answer
    x = 273,216,573.28

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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.