Home / 7,287,986.20-10,938,614.46-3,879,136.12

Finding the Fourth Proportional to 7,287,986.20, 10,938,614.46 and 3,879,136.12

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Solution

The fourth proportional to 7,287,986.20, 10,938,614.46 and 3,879,136.12 is: 5,822,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287,986.20 : 10,938,614.46 = 3,879,136.12 : x
  2. Step 2: Convert to fraction form
    7,287,986.20/10,938,614.46 = 3,879,136.12/x
  3. Step 3: Cross multiply
    7,287,986.20x = 10,938,614.46 × 3,879,136.12
  4. Step 4: Simplify right side
    7,287,986.20x = 42,432,374,454,540.30
  5. Step 5: Solve for x
    x = 42,432,374,454,540.30/7,287,986.20
  6. Step 6: Final answer
    x = 5,822,235.84

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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.