Home / 5,421,108.56-8,129,047.07-3,147,205.41

Finding the Fourth Proportional to 5,421,108.56, 8,129,047.07 and 3,147,205.41

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Solution

The fourth proportional to 5,421,108.56, 8,129,047.07 and 3,147,205.41 is: 4,719,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,108.56 : 8,129,047.07 = 3,147,205.41 : x
  2. Step 2: Convert to fraction form
    5,421,108.56/8,129,047.07 = 3,147,205.41/x
  3. Step 3: Cross multiply
    5,421,108.56x = 8,129,047.07 × 3,147,205.41
  4. Step 4: Simplify right side
    5,421,108.56x = 25,583,780,924,716.66
  5. Step 5: Solve for x
    x = 25,583,780,924,716.66/5,421,108.56
  6. Step 6: Final answer
    x = 4,719,289.54

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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.