Home / 15,191,915.44-20,964,841.62-8,222,591.80

Finding the Fourth Proportional to 15,191,915.44, 20,964,841.62 and 8,222,591.80

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Solution

The fourth proportional to 15,191,915.44, 20,964,841.62 and 8,222,591.80 is: 11,347,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,915.44 : 20,964,841.62 = 8,222,591.80 : x
  2. Step 2: Convert to fraction form
    15,191,915.44/20,964,841.62 = 8,222,591.80/x
  3. Step 3: Cross multiply
    15,191,915.44x = 20,964,841.62 × 8,222,591.80
  4. Step 4: Simplify right side
    15,191,915.44x = 172,385,334,792,910.72
  5. Step 5: Solve for x
    x = 172,385,334,792,910.72/15,191,915.44
  6. Step 6: Final answer
    x = 11,347,175.77

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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.