Home / 15,279,745.93-21,079,826.78-8,662,940.98

Finding the Fourth Proportional to 15,279,745.93, 21,079,826.78 and 8,662,940.98

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Solution

The fourth proportional to 15,279,745.93, 21,079,826.78 and 8,662,940.98 is: 11,951,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279,745.93 : 21,079,826.78 = 8,662,940.98 : x
  2. Step 2: Convert to fraction form
    15,279,745.93/21,079,826.78 = 8,662,940.98/x
  3. Step 3: Cross multiply
    15,279,745.93x = 21,079,826.78 × 8,662,940.98
  4. Step 4: Simplify right side
    15,279,745.93x = 182,613,295,216,478.19
  5. Step 5: Solve for x
    x = 182,613,295,216,478.19/15,279,745.93
  6. Step 6: Final answer
    x = 11,951,330.61

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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.