Home / 683,981,839.20-1,025,972,758.80-199,323,458.40

Finding the Fourth Proportional to 683,981,839.20, 1,025,972,758.80 and 199,323,458.40

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Solution

The fourth proportional to 683,981,839.20, 1,025,972,758.80 and 199,323,458.40 is: 298,985,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,981,839.20 : 1,025,972,758.80 = 199,323,458.40 : x
  2. Step 2: Convert to fraction form
    683,981,839.20/1,025,972,758.80 = 199,323,458.40/x
  3. Step 3: Cross multiply
    683,981,839.20x = 1,025,972,758.80 × 199,323,458.40
  4. Step 4: Simplify right side
    683,981,839.20x = 204,500,438,508,205,024
  5. Step 5: Solve for x
    x = 204,500,438,508,205,024/683,981,839.20
  6. Step 6: Final answer
    x = 298,985,187.60

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1.5x scale

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.