Home / 257,821,233.57-355,793,340.71-140,347,455.61

Finding the Fourth Proportional to 257,821,233.57, 355,793,340.71 and 140,347,455.61

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Solution

The fourth proportional to 257,821,233.57, 355,793,340.71 and 140,347,455.61 is: 193,679,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,821,233.57 : 355,793,340.71 = 140,347,455.61 : x
  2. Step 2: Convert to fraction form
    257,821,233.57/355,793,340.71 = 140,347,455.61/x
  3. Step 3: Cross multiply
    257,821,233.57x = 355,793,340.71 × 140,347,455.61
  4. Step 4: Simplify right side
    257,821,233.57x = 49,934,690,091,630,336
  5. Step 5: Solve for x
    x = 49,934,690,091,630,336/257,821,233.57
  6. Step 6: Final answer
    x = 193,679,509.64

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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.