Home / 15,618,286.28-21,538,093.38-12,179,272.52

Finding the Fourth Proportional to 15,618,286.28, 21,538,093.38 and 12,179,272.52

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Solution

The fourth proportional to 15,618,286.28, 21,538,093.38 and 12,179,272.52 is: 16,795,588.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618,286.28 : 21,538,093.38 = 12,179,272.52 : x
  2. Step 2: Convert to fraction form
    15,618,286.28/21,538,093.38 = 12,179,272.52/x
  3. Step 3: Cross multiply
    15,618,286.28x = 21,538,093.38 × 12,179,272.52
  4. Step 4: Simplify right side
    15,618,286.28x = 262,318,308,836,227.91
  5. Step 5: Solve for x
    x = 262,318,308,836,227.91/15,618,286.28
  6. Step 6: Final answer
    x = 16,795,588.46

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1.5x scale

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.