Home / 422,085,465.92-632,192,745.92-324,321,550.40

Finding the Fourth Proportional to 422,085,465.92, 632,192,745.92 and 324,321,550.40

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Solution

The fourth proportional to 422,085,465.92, 632,192,745.92 and 324,321,550.40 is: 485,763,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,085,465.92 : 632,192,745.92 = 324,321,550.40 : x
  2. Step 2: Convert to fraction form
    422,085,465.92/632,192,745.92 = 324,321,550.40/x
  3. Step 3: Cross multiply
    422,085,465.92x = 632,192,745.92 × 324,321,550.40
  4. Step 4: Simplify right side
    422,085,465.92x = 205,033,731,508,407,648
  5. Step 5: Solve for x
    x = 205,033,731,508,407,648/422,085,465.92
  6. Step 6: Final answer
    x = 485,763,543.32

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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.