Home / 20,790,450.52-31,183,293.15-5,439,221.61

Finding the Fourth Proportional to 20,790,450.52, 31,183,293.15 and 5,439,221.61

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Solution

The fourth proportional to 20,790,450.52, 31,183,293.15 and 5,439,221.61 is: 8,158,209.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,450.52 : 31,183,293.15 = 5,439,221.61 : x
  2. Step 2: Convert to fraction form
    20,790,450.52/31,183,293.15 = 5,439,221.61/x
  3. Step 3: Cross multiply
    20,790,450.52x = 31,183,293.15 × 5,439,221.61
  4. Step 4: Simplify right side
    20,790,450.52x = 169,612,841,972,444.97
  5. Step 5: Solve for x
    x = 169,612,841,972,444.97/20,790,450.52
  6. Step 6: Final answer
    x = 8,158,209.07

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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.