Home / 5,420,783.20-8,131,174.80-4,145,324.80

Finding the Fourth Proportional to 5,420,783.20, 8,131,174.80 and 4,145,324.80

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Solution

The fourth proportional to 5,420,783.20, 8,131,174.80 and 4,145,324.80 is: 6,217,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420,783.20 : 8,131,174.80 = 4,145,324.80 : x
  2. Step 2: Convert to fraction form
    5,420,783.20/8,131,174.80 = 4,145,324.80/x
  3. Step 3: Cross multiply
    5,420,783.20x = 8,131,174.80 × 4,145,324.80
  4. Step 4: Simplify right side
    5,420,783.20x = 33,706,360,551,575.04
  5. Step 5: Solve for x
    x = 33,706,360,551,575.04/5,420,783.20
  6. Step 6: Final answer
    x = 6,217,987.20

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1.5x scale

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.