Home / 28,838,245.76-39,796,838.88-15,786,338.48

Finding the Fourth Proportional to 28,838,245.76, 39,796,838.88 and 15,786,338.48

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Solution

The fourth proportional to 28,838,245.76, 39,796,838.88 and 15,786,338.48 is: 21,785,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838,245.76 : 39,796,838.88 = 15,786,338.48 : x
  2. Step 2: Convert to fraction form
    28,838,245.76/39,796,838.88 = 15,786,338.48/x
  3. Step 3: Cross multiply
    28,838,245.76x = 39,796,838.88 × 15,786,338.48
  4. Step 4: Simplify right side
    28,838,245.76x = 628,246,368,993,704.12
  5. Step 5: Solve for x
    x = 628,246,368,993,704.12/28,838,245.76
  6. Step 6: Final answer
    x = 21,785,179.80

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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.