Home / 7,728,620.85-10,665,080.46-4,290,640.44

Finding the Fourth Proportional to 7,728,620.85, 10,665,080.46 and 4,290,640.44

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Solution

The fourth proportional to 7,728,620.85, 10,665,080.46 and 4,290,640.44 is: 5,920,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,620.85 : 10,665,080.46 = 4,290,640.44 : x
  2. Step 2: Convert to fraction form
    7,728,620.85/10,665,080.46 = 4,290,640.44/x
  3. Step 3: Cross multiply
    7,728,620.85x = 10,665,080.46 × 4,290,640.44
  4. Step 4: Simplify right side
    7,728,620.85x = 45,760,025,517,529.81
  5. Step 5: Solve for x
    x = 45,760,025,517,529.81/7,728,620.85
  6. Step 6: Final answer
    x = 5,920,852.69

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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.