Home / 279,550,568.70-419,321,916.45-126,196,379.10

Finding the Fourth Proportional to 279,550,568.70, 419,321,916.45 and 126,196,379.10

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Solution

The fourth proportional to 279,550,568.70, 419,321,916.45 and 126,196,379.10 is: 189,292,791.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,550,568.70 : 419,321,916.45 = 126,196,379.10 : x
  2. Step 2: Convert to fraction form
    279,550,568.70/419,321,916.45 = 126,196,379.10/x
  3. Step 3: Cross multiply
    279,550,568.70x = 419,321,916.45 × 126,196,379.10
  4. Step 4: Simplify right side
    279,550,568.70x = 52,916,907,533,262,720
  5. Step 5: Solve for x
    x = 52,916,907,533,262,720/279,550,568.70
  6. Step 6: Final answer
    x = 189,292,791.57

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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.