Home / 311,950,584.27-430,505,258.33-172,721,358.34

Finding the Fourth Proportional to 311,950,584.27, 430,505,258.33 and 172,721,358.34

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Solution

The fourth proportional to 311,950,584.27, 430,505,258.33 and 172,721,358.34 is: 238,362,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,950,584.27 : 430,505,258.33 = 172,721,358.34 : x
  2. Step 2: Convert to fraction form
    311,950,584.27/430,505,258.33 = 172,721,358.34/x
  3. Step 3: Cross multiply
    311,950,584.27x = 430,505,258.33 × 172,721,358.34
  4. Step 4: Simplify right side
    311,950,584.27x = 74,357,452,990,625,744
  5. Step 5: Solve for x
    x = 74,357,452,990,625,744/311,950,584.27
  6. Step 6: Final answer
    x = 238,362,922.66

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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.