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Finding the Fourth Proportional to 7,940,916, 11,892,420 and 4,568,037.12

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Solution

The fourth proportional to 7,940,916, 11,892,420 and 4,568,037.12 is: 6,841,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940,916 : 11,892,420 = 4,568,037.12 : x
  2. Step 2: Convert to fraction form
    7,940,916/11,892,420 = 4,568,037.12/x
  3. Step 3: Cross multiply
    7,940,916x = 11,892,420 × 4,568,037.12
  4. Step 4: Simplify right side
    7,940,916x = 54,325,016,006,630.40
  5. Step 5: Solve for x
    x = 54,325,016,006,630.40/7,940,916
  6. Step 6: Final answer
    x = 6,841,152.33

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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.