Home / 12,940,619.92-19,396,169.82-8,085,159

Finding the Fourth Proportional to 12,940,619.92, 19,396,169.82 and 8,085,159

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Solution

The fourth proportional to 12,940,619.92, 19,396,169.82 and 8,085,159 is: 12,118,516.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,619.92 : 19,396,169.82 = 8,085,159 : x
  2. Step 2: Convert to fraction form
    12,940,619.92/19,396,169.82 = 8,085,159/x
  3. Step 3: Cross multiply
    12,940,619.92x = 19,396,169.82 × 8,085,159
  4. Step 4: Simplify right side
    12,940,619.92x = 156,821,116,985,701.38
  5. Step 5: Solve for x
    x = 156,821,116,985,701.38/12,940,619.92
  6. Step 6: Final answer
    x = 12,118,516.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.