Home / 13,902,405.60-20,853,608.40-8,219,704.80

Finding the Fourth Proportional to 13,902,405.60, 20,853,608.40 and 8,219,704.80

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Solution

The fourth proportional to 13,902,405.60, 20,853,608.40 and 8,219,704.80 is: 12,329,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902,405.60 : 20,853,608.40 = 8,219,704.80 : x
  2. Step 2: Convert to fraction form
    13,902,405.60/20,853,608.40 = 8,219,704.80/x
  3. Step 3: Cross multiply
    13,902,405.60x = 20,853,608.40 × 8,219,704.80
  4. Step 4: Simplify right side
    13,902,405.60x = 171,410,505,062,800.31
  5. Step 5: Solve for x
    x = 171,410,505,062,800.31/13,902,405.60
  6. Step 6: Final answer
    x = 12,329,557.20

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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.