Home / 311,819,321,350.76-467,654,091,315.66-143,965,509,657.80

Finding the Fourth Proportional to 311,819,321,350.76, 467,654,091,315.66 and 143,965,509,657.80

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Solution

The fourth proportional to 311,819,321,350.76, 467,654,091,315.66 and 143,965,509,657.80 is: 215,913,687,798.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,819,321,350.76 : 467,654,091,315.66 = 143,965,509,657.80 : x
  2. Step 2: Convert to fraction form
    311,819,321,350.76/467,654,091,315.66 = 143,965,509,657.80/x
  3. Step 3: Cross multiply
    311,819,321,350.76x = 467,654,091,315.66 × 143,965,509,657.80
  4. Step 4: Simplify right side
    311,819,321,350.76x = 67,326,059,599,814,320,979,968
  5. Step 5: Solve for x
    x = 67,326,059,599,814,320,979,968/311,819,321,350.76
  6. Step 6: Final answer
    x = 215,913,687,798.97

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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.