Home / 485,309,725.20-727,892,831.52-178,530,093.54

Finding the Fourth Proportional to 485,309,725.20, 727,892,831.52 and 178,530,093.54

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Solution

The fourth proportional to 485,309,725.20, 727,892,831.52 and 178,530,093.54 is: 267,768,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,725.20 : 727,892,831.52 = 178,530,093.54 : x
  2. Step 2: Convert to fraction form
    485,309,725.20/727,892,831.52 = 178,530,093.54/x
  3. Step 3: Cross multiply
    485,309,725.20x = 727,892,831.52 × 178,530,093.54
  4. Step 4: Simplify right side
    485,309,725.20x = 129,950,775,298,361,056
  5. Step 5: Solve for x
    x = 129,950,775,298,361,056/485,309,725.20
  6. Step 6: Final answer
    x = 267,768,743.44

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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.