Home / 21,879,189.60-32,848,333.20-12,790,600.80

Finding the Fourth Proportional to 21,879,189.60, 32,848,333.20 and 12,790,600.80

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Solution

The fourth proportional to 21,879,189.60, 32,848,333.20 and 12,790,600.80 is: 19,203,175.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,189.60 : 32,848,333.20 = 12,790,600.80 : x
  2. Step 2: Convert to fraction form
    21,879,189.60/32,848,333.20 = 12,790,600.80/x
  3. Step 3: Cross multiply
    21,879,189.60x = 32,848,333.20 × 12,790,600.80
  4. Step 4: Simplify right side
    21,879,189.60x = 420,149,916,906,586.56
  5. Step 5: Solve for x
    x = 420,149,916,906,586.56/21,879,189.60
  6. Step 6: Final answer
    x = 19,203,175.46

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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.