Home / 231,410,380.68-319,355,532.63-126,992,188.80

Finding the Fourth Proportional to 231,410,380.68, 319,355,532.63 and 126,992,188.80

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Solution

The fourth proportional to 231,410,380.68, 319,355,532.63 and 126,992,188.80 is: 175,254,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,410,380.68 : 319,355,532.63 = 126,992,188.80 : x
  2. Step 2: Convert to fraction form
    231,410,380.68/319,355,532.63 = 126,992,188.80/x
  3. Step 3: Cross multiply
    231,410,380.68x = 319,355,532.63 × 126,992,188.80
  4. Step 4: Simplify right side
    231,410,380.68x = 40,555,658,094,073,520
  5. Step 5: Solve for x
    x = 40,555,658,094,073,520/231,410,380.68
  6. Step 6: Final answer
    x = 175,254,273.27

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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.