Home / 15,631,138.06-21,571,097.20-8,661,932.04

Finding the Fourth Proportional to 15,631,138.06, 21,571,097.20 and 8,661,932.04

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Solution

The fourth proportional to 15,631,138.06, 21,571,097.20 and 8,661,932.04 is: 11,953,536.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631,138.06 : 21,571,097.20 = 8,661,932.04 : x
  2. Step 2: Convert to fraction form
    15,631,138.06/21,571,097.20 = 8,661,932.04/x
  3. Step 3: Cross multiply
    15,631,138.06x = 21,571,097.20 × 8,661,932.04
  4. Step 4: Simplify right side
    15,631,138.06x = 186,847,377,952,979.44
  5. Step 5: Solve for x
    x = 186,847,377,952,979.44/15,631,138.06
  6. Step 6: Final answer
    x = 11,953,536.41

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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.