Home / 257,821,231.57-355,793,337.95-140,347,453.61

Finding the Fourth Proportional to 257,821,231.57, 355,793,337.95 and 140,347,453.61

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Solution

The fourth proportional to 257,821,231.57, 355,793,337.95 and 140,347,453.61 is: 193,679,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,821,231.57 : 355,793,337.95 = 140,347,453.61 : x
  2. Step 2: Convert to fraction form
    257,821,231.57/355,793,337.95 = 140,347,453.61/x
  3. Step 3: Cross multiply
    257,821,231.57x = 355,793,337.95 × 140,347,453.61
  4. Step 4: Simplify right side
    257,821,231.57x = 49,934,688,992,872,424
  5. Step 5: Solve for x
    x = 49,934,688,992,872,424/257,821,231.57
  6. Step 6: Final answer
    x = 193,679,506.88

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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.