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Finding the Fourth Proportional to 7,940,918, 11,892,423 and 4,568,039.12

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Solution

The fourth proportional to 7,940,918, 11,892,423 and 4,568,039.12 is: 6,841,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940,918 : 11,892,423 = 4,568,039.12 : x
  2. Step 2: Convert to fraction form
    7,940,918/11,892,423 = 4,568,039.12/x
  3. Step 3: Cross multiply
    7,940,918x = 11,892,423 × 4,568,039.12
  4. Step 4: Simplify right side
    7,940,918x = 54,325,053,495,587.76
  5. Step 5: Solve for x
    x = 54,325,053,495,587.76/7,940,918
  6. Step 6: Final answer
    x = 6,841,155.33

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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.