Home / 280,651,605.20-420,339,678.60-177,339,474.80

Finding the Fourth Proportional to 280,651,605.20, 420,339,678.60 and 177,339,474.80

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Solution

The fourth proportional to 280,651,605.20, 420,339,678.60 and 177,339,474.80 is: 265,606,240.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,651,605.20 : 420,339,678.60 = 177,339,474.80 : x
  2. Step 2: Convert to fraction form
    280,651,605.20/420,339,678.60 = 177,339,474.80/x
  3. Step 3: Cross multiply
    280,651,605.20x = 420,339,678.60 × 177,339,474.80
  4. Step 4: Simplify right side
    280,651,605.20x = 74,542,817,840,524,816
  5. Step 5: Solve for x
    x = 74,542,817,840,524,816/280,651,605.20
  6. Step 6: Final answer
    x = 265,606,240.83

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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.