Home / 420,820,540.56-580,750,281-235,181,550.96

Finding the Fourth Proportional to 420,820,540.56, 580,750,281 and 235,181,550.96

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Solution

The fourth proportional to 420,820,540.56, 580,750,281 and 235,181,550.96 is: 324,560,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,820,540.56 : 580,750,281 = 235,181,550.96 : x
  2. Step 2: Convert to fraction form
    420,820,540.56/580,750,281 = 235,181,550.96/x
  3. Step 3: Cross multiply
    420,820,540.56x = 580,750,281 × 235,181,550.96
  4. Step 4: Simplify right side
    420,820,540.56x = 136,581,751,806,035,824
  5. Step 5: Solve for x
    x = 136,581,751,806,035,824/420,820,540.56
  6. Step 6: Final answer
    x = 324,560,563.57

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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.