Home / 306,135,025.92-422,360,352-196,187,362.56

Finding the Fourth Proportional to 306,135,025.92, 422,360,352 and 196,187,362.56

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Solution

The fourth proportional to 306,135,025.92, 422,360,352 and 196,187,362.56 is: 270,670,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,135,025.92 : 422,360,352 = 196,187,362.56 : x
  2. Step 2: Convert to fraction form
    306,135,025.92/422,360,352 = 196,187,362.56/x
  3. Step 3: Cross multiply
    306,135,025.92x = 422,360,352 × 196,187,362.56
  4. Step 4: Simplify right side
    306,135,025.92x = 82,861,763,508,793,216
  5. Step 5: Solve for x
    x = 82,861,763,508,793,216/306,135,025.92
  6. Step 6: Final answer
    x = 270,670,640.38

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1.5x scale

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.