Home / 311,684,705.82-430,129,926.11-170,568,187.73

Finding the Fourth Proportional to 311,684,705.82, 430,129,926.11 and 170,568,187.73

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Solution

The fourth proportional to 311,684,705.82, 430,129,926.11 and 170,568,187.73 is: 235,386,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,684,705.82 : 430,129,926.11 = 170,568,187.73 : x
  2. Step 2: Convert to fraction form
    311,684,705.82/430,129,926.11 = 170,568,187.73/x
  3. Step 3: Cross multiply
    311,684,705.82x = 430,129,926.11 × 170,568,187.73
  4. Step 4: Simplify right side
    311,684,705.82x = 73,366,481,984,910,272
  5. Step 5: Solve for x
    x = 73,366,481,984,910,272/311,684,705.82
  6. Step 6: Final answer
    x = 235,386,852.85

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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.