Home / 20,764,087.36-28,653,573.49-11,942,867.95

Finding the Fourth Proportional to 20,764,087.36, 28,653,573.49 and 11,942,867.95

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Solution

The fourth proportional to 20,764,087.36, 28,653,573.49 and 11,942,867.95 is: 16,480,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,087.36 : 28,653,573.49 = 11,942,867.95 : x
  2. Step 2: Convert to fraction form
    20,764,087.36/28,653,573.49 = 11,942,867.95/x
  3. Step 3: Cross multiply
    20,764,087.36x = 28,653,573.49 × 11,942,867.95
  4. Step 4: Simplify right side
    20,764,087.36x = 342,205,844,385,199.56
  5. Step 5: Solve for x
    x = 342,205,844,385,199.56/20,764,087.36
  6. Step 6: Final answer
    x = 16,480,659.06

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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.