Home / 7,809,489.64-11,721,790.88-3,768,821.92

Finding the Fourth Proportional to 7,809,489.64, 11,721,790.88 and 3,768,821.92

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Solution

The fourth proportional to 7,809,489.64, 11,721,790.88 and 3,768,821.92 is: 5,656,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809,489.64 : 11,721,790.88 = 3,768,821.92 : x
  2. Step 2: Convert to fraction form
    7,809,489.64/11,721,790.88 = 3,768,821.92/x
  3. Step 3: Cross multiply
    7,809,489.64x = 11,721,790.88 × 3,768,821.92
  4. Step 4: Simplify right side
    7,809,489.64x = 44,177,342,410,200.09
  5. Step 5: Solve for x
    x = 44,177,342,410,200.09/7,809,489.64
  6. Step 6: Final answer
    x = 5,656,879.57

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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.