Home / 20,361,481.39-28,107,902.06-12,104,216.83

Finding the Fourth Proportional to 20,361,481.39, 28,107,902.06 and 12,104,216.83

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Solution

The fourth proportional to 20,361,481.39, 28,107,902.06 and 12,104,216.83 is: 16,709,203.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,361,481.39 : 28,107,902.06 = 12,104,216.83 : x
  2. Step 2: Convert to fraction form
    20,361,481.39/28,107,902.06 = 12,104,216.83/x
  3. Step 3: Cross multiply
    20,361,481.39x = 28,107,902.06 × 12,104,216.83
  4. Step 4: Simplify right side
    20,361,481.39x = 340,224,141,170,643.62
  5. Step 5: Solve for x
    x = 340,224,141,170,643.62/20,361,481.39
  6. Step 6: Final answer
    x = 16,709,203.75

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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.