Home / 5,328,195.21-7,990,308.72-1,915,550.60

Finding the Fourth Proportional to 5,328,195.21, 7,990,308.72 and 1,915,550.60

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Solution

The fourth proportional to 5,328,195.21, 7,990,308.72 and 1,915,550.60 is: 2,872,612.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328,195.21 : 7,990,308.72 = 1,915,550.60 : x
  2. Step 2: Convert to fraction form
    5,328,195.21/7,990,308.72 = 1,915,550.60/x
  3. Step 3: Cross multiply
    5,328,195.21x = 7,990,308.72 × 1,915,550.60
  4. Step 4: Simplify right side
    5,328,195.21x = 15,305,840,622,829.69
  5. Step 5: Solve for x
    x = 15,305,840,622,829.69/5,328,195.21
  6. Step 6: Final answer
    x = 2,872,612.59

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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.