Home / 12,469,231.20-18,693,478.80-5,286,280.80

Finding the Fourth Proportional to 12,469,231.20, 18,693,478.80 and 5,286,280.80

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Solution

The fourth proportional to 12,469,231.20, 18,693,478.80 and 5,286,280.80 is: 7,925,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469,231.20 : 18,693,478.80 = 5,286,280.80 : x
  2. Step 2: Convert to fraction form
    12,469,231.20/18,693,478.80 = 5,286,280.80/x
  3. Step 3: Cross multiply
    12,469,231.20x = 18,693,478.80 × 5,286,280.80
  4. Step 4: Simplify right side
    12,469,231.20x = 98,818,978,065,647.05
  5. Step 5: Solve for x
    x = 98,818,978,065,647.05/12,469,231.20
  6. Step 6: Final answer
    x = 7,925,025.73

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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.