Home / 5,319,121.80-7,978,682.70-3,618,510.60

Finding the Fourth Proportional to 5,319,121.80, 7,978,682.70 and 3,618,510.60

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Solution

The fourth proportional to 5,319,121.80, 7,978,682.70 and 3,618,510.60 is: 5,427,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319,121.80 : 7,978,682.70 = 3,618,510.60 : x
  2. Step 2: Convert to fraction form
    5,319,121.80/7,978,682.70 = 3,618,510.60/x
  3. Step 3: Cross multiply
    5,319,121.80x = 7,978,682.70 × 3,618,510.60
  4. Step 4: Simplify right side
    5,319,121.80x = 28,870,947,923,986.62
  5. Step 5: Solve for x
    x = 28,870,947,923,986.62/5,319,121.80
  6. Step 6: Final answer
    x = 5,427,765.90

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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.