Home / 393,661,105.20-590,491,657.80-134,790,289.20

Finding the Fourth Proportional to 393,661,105.20, 590,491,657.80 and 134,790,289.20

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Solution

The fourth proportional to 393,661,105.20, 590,491,657.80 and 134,790,289.20 is: 202,185,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,661,105.20 : 590,491,657.80 = 134,790,289.20 : x
  2. Step 2: Convert to fraction form
    393,661,105.20/590,491,657.80 = 134,790,289.20/x
  3. Step 3: Cross multiply
    393,661,105.20x = 590,491,657.80 × 134,790,289.20
  4. Step 4: Simplify right side
    393,661,105.20x = 79,592,541,325,049,424
  5. Step 5: Solve for x
    x = 79,592,541,325,049,424/393,661,105.20
  6. Step 6: Final answer
    x = 202,185,433.80

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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.