Home / 12,290,471.80-18,435,707.70-3,770,794.60

Finding the Fourth Proportional to 12,290,471.80, 18,435,707.70 and 3,770,794.60

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Solution

The fourth proportional to 12,290,471.80, 18,435,707.70 and 3,770,794.60 is: 5,656,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,471.80 : 18,435,707.70 = 3,770,794.60 : x
  2. Step 2: Convert to fraction form
    12,290,471.80/18,435,707.70 = 3,770,794.60/x
  3. Step 3: Cross multiply
    12,290,471.80x = 18,435,707.70 × 3,770,794.60
  4. Step 4: Simplify right side
    12,290,471.80x = 69,517,267,042,338.42
  5. Step 5: Solve for x
    x = 69,517,267,042,338.42/12,290,471.80
  6. Step 6: Final answer
    x = 5,656,191.90

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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.