Home / 5,431,287.70-8,147,915.70-2,728,811.80

Finding the Fourth Proportional to 5,431,287.70, 8,147,915.70 and 2,728,811.80

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Solution

The fourth proportional to 5,431,287.70, 8,147,915.70 and 2,728,811.80 is: 4,093,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,287.70 : 8,147,915.70 = 2,728,811.80 : x
  2. Step 2: Convert to fraction form
    5,431,287.70/8,147,915.70 = 2,728,811.80/x
  3. Step 3: Cross multiply
    5,431,287.70x = 8,147,915.70 × 2,728,811.80
  4. Step 4: Simplify right side
    5,431,287.70x = 22,234,128,507,565.26
  5. Step 5: Solve for x
    x = 22,234,128,507,565.26/5,431,287.70
  6. Step 6: Final answer
    x = 4,093,712.16

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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.