Home / 420,396,419.55-580,135,819.07-232,220,663.46

Finding the Fourth Proportional to 420,396,419.55, 580,135,819.07 and 232,220,663.46

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Solution

The fourth proportional to 420,396,419.55, 580,135,819.07 and 232,220,663.46 is: 320,458,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,396,419.55 : 580,135,819.07 = 232,220,663.46 : x
  2. Step 2: Convert to fraction form
    420,396,419.55/580,135,819.07 = 232,220,663.46/x
  3. Step 3: Cross multiply
    420,396,419.55x = 580,135,819.07 × 232,220,663.46
  4. Step 4: Simplify right side
    420,396,419.55x = 134,719,524,800,184,832
  5. Step 5: Solve for x
    x = 134,719,524,800,184,832/420,396,419.55
  6. Step 6: Final answer
    x = 320,458,306.82

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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.