Home / 12,190,515.05-18,285,772.58-11,074,488.95

Finding the Fourth Proportional to 12,190,515.05, 18,285,772.58 and 11,074,488.95

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Solution

The fourth proportional to 12,190,515.05, 18,285,772.58 and 11,074,488.95 is: 16,611,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190,515.05 : 18,285,772.58 = 11,074,488.95 : x
  2. Step 2: Convert to fraction form
    12,190,515.05/18,285,772.58 = 11,074,488.95/x
  3. Step 3: Cross multiply
    12,190,515.05x = 18,285,772.58 × 11,074,488.95
  4. Step 4: Simplify right side
    12,190,515.05x = 202,505,586,324,050.53
  5. Step 5: Solve for x
    x = 202,505,586,324,050.53/12,190,515.05
  6. Step 6: Final answer
    x = 16,611,733.43

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Similar ratio
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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.