Home / 15,200,872.26-20,978,704.59-8,675,476.62

Finding the Fourth Proportional to 15,200,872.26, 20,978,704.59 and 8,675,476.62

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Solution

The fourth proportional to 15,200,872.26, 20,978,704.59 and 8,675,476.62 is: 11,973,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200,872.26 : 20,978,704.59 = 8,675,476.62 : x
  2. Step 2: Convert to fraction form
    15,200,872.26/20,978,704.59 = 8,675,476.62/x
  3. Step 3: Cross multiply
    15,200,872.26x = 20,978,704.59 × 8,675,476.62
  4. Step 4: Simplify right side
    15,200,872.26x = 182,000,261,188,431.66
  5. Step 5: Solve for x
    x = 182,000,261,188,431.66/15,200,872.26
  6. Step 6: Final answer
    x = 11,973,014.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.