Home / 7,078,636.22-9,768,236.62-4,178,961.16

Finding the Fourth Proportional to 7,078,636.22, 9,768,236.62 and 4,178,961.16

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Solution

The fourth proportional to 7,078,636.22, 9,768,236.62 and 4,178,961.16 is: 5,766,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078,636.22 : 9,768,236.62 = 4,178,961.16 : x
  2. Step 2: Convert to fraction form
    7,078,636.22/9,768,236.62 = 4,178,961.16/x
  3. Step 3: Cross multiply
    7,078,636.22x = 9,768,236.62 × 4,178,961.16
  4. Step 4: Simplify right side
    7,078,636.22x = 40,821,081,436,669.68
  5. Step 5: Solve for x
    x = 40,821,081,436,669.68/7,078,636.22
  6. Step 6: Final answer
    x = 5,766,800.29

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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.