Home / 3,318,163.20-4,978,166.40-1,425,811.20

Finding the Fourth Proportional to 3,318,163.20, 4,978,166.40 and 1,425,811.20

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Solution

The fourth proportional to 3,318,163.20, 4,978,166.40 and 1,425,811.20 is: 2,139,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318,163.20 : 4,978,166.40 = 1,425,811.20 : x
  2. Step 2: Convert to fraction form
    3,318,163.20/4,978,166.40 = 1,425,811.20/x
  3. Step 3: Cross multiply
    3,318,163.20x = 4,978,166.40 × 1,425,811.20
  4. Step 4: Simplify right side
    3,318,163.20x = 7,097,925,408,583.68
  5. Step 5: Solve for x
    x = 7,097,925,408,583.68/3,318,163.20
  6. Step 6: Final answer
    x = 2,139,112.81

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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.