Home / 280,180,806.40-419,704,339.20-194,016,505.60

Finding the Fourth Proportional to 280,180,806.40, 419,704,339.20 and 194,016,505.60

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Solution

The fourth proportional to 280,180,806.40, 419,704,339.20 and 194,016,505.60 is: 290,632,218.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,180,806.40 : 419,704,339.20 = 194,016,505.60 : x
  2. Step 2: Convert to fraction form
    280,180,806.40/419,704,339.20 = 194,016,505.60/x
  3. Step 3: Cross multiply
    280,180,806.40x = 419,704,339.20 × 194,016,505.60
  4. Step 4: Simplify right side
    280,180,806.40x = 81,429,569,276,741,088
  5. Step 5: Solve for x
    x = 81,429,569,276,741,088/280,180,806.40
  6. Step 6: Final answer
    x = 290,632,218.26

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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.