Home / 20,881,163.92-28,819,469.46-12,179,336.26

Finding the Fourth Proportional to 20,881,163.92, 28,819,469.46 and 12,179,336.26

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Solution

The fourth proportional to 20,881,163.92, 28,819,469.46 and 12,179,336.26 is: 16,809,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,163.92 : 28,819,469.46 = 12,179,336.26 : x
  2. Step 2: Convert to fraction form
    20,881,163.92/28,819,469.46 = 12,179,336.26/x
  3. Step 3: Cross multiply
    20,881,163.92x = 28,819,469.46 × 12,179,336.26
  4. Step 4: Simplify right side
    20,881,163.92x = 351,002,009,388,140.62
  5. Step 5: Solve for x
    x = 351,002,009,388,140.62/20,881,163.92
  6. Step 6: Final answer
    x = 16,809,504.05

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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.