Home / 20,354,826.88-28,089,721.92-11,188,408.96

Finding the Fourth Proportional to 20,354,826.88, 28,089,721.92 and 11,188,408.96

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Solution

The fourth proportional to 20,354,826.88, 28,089,721.92 and 11,188,408.96 is: 15,440,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354,826.88 : 28,089,721.92 = 11,188,408.96 : x
  2. Step 2: Convert to fraction form
    20,354,826.88/28,089,721.92 = 11,188,408.96/x
  3. Step 3: Cross multiply
    20,354,826.88x = 28,089,721.92 × 11,188,408.96
  4. Step 4: Simplify right side
    20,354,826.88x = 314,279,296,413,636.44
  5. Step 5: Solve for x
    x = 314,279,296,413,636.44/20,354,826.88
  6. Step 6: Final answer
    x = 15,440,037.80

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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.