Home / 198,931,283.28-298,067,047.74-120,972,367.76

Finding the Fourth Proportional to 198,931,283.28, 298,067,047.74 and 120,972,367.76

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Solution

The fourth proportional to 198,931,283.28, 298,067,047.74 and 120,972,367.76 is: 181,257,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,931,283.28 : 298,067,047.74 = 120,972,367.76 : x
  2. Step 2: Convert to fraction form
    198,931,283.28/298,067,047.74 = 120,972,367.76/x
  3. Step 3: Cross multiply
    198,931,283.28x = 298,067,047.74 × 120,972,367.76
  4. Step 4: Simplify right side
    198,931,283.28x = 36,057,876,514,850,424
  5. Step 5: Solve for x
    x = 36,057,876,514,850,424/198,931,283.28
  6. Step 6: Final answer
    x = 181,257,949.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.