Home / 420,820,474.28-580,750,189.38-235,181,484.50

Finding the Fourth Proportional to 420,820,474.28, 580,750,189.38 and 235,181,484.50

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Solution

The fourth proportional to 420,820,474.28, 580,750,189.38 and 235,181,484.50 is: 324,560,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,820,474.28 : 580,750,189.38 = 235,181,484.50 : x
  2. Step 2: Convert to fraction form
    420,820,474.28/580,750,189.38 = 235,181,484.50/x
  3. Step 3: Cross multiply
    420,820,474.28x = 580,750,189.38 × 235,181,484.50
  4. Step 4: Simplify right side
    420,820,474.28x = 136,581,691,659,140,784
  5. Step 5: Solve for x
    x = 136,581,691,659,140,784/420,820,474.28
  6. Step 6: Final answer
    x = 324,560,471.77

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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.