Home / 683,981,840.20-1,025,972,760.30-199,323,459.40

Finding the Fourth Proportional to 683,981,840.20, 1,025,972,760.30 and 199,323,459.40

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Solution

The fourth proportional to 683,981,840.20, 1,025,972,760.30 and 199,323,459.40 is: 298,985,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,981,840.20 : 1,025,972,760.30 = 199,323,459.40 : x
  2. Step 2: Convert to fraction form
    683,981,840.20/1,025,972,760.30 = 199,323,459.40/x
  3. Step 3: Cross multiply
    683,981,840.20x = 1,025,972,760.30 × 199,323,459.40
  4. Step 4: Simplify right side
    683,981,840.20x = 204,500,439,833,162,976
  5. Step 5: Solve for x
    x = 204,500,439,833,162,976/683,981,840.20
  6. Step 6: Final answer
    x = 298,985,189.10

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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.