Home / 6,640,216.80-9,969,656.40-4,120,792.80

Finding the Fourth Proportional to 6,640,216.80, 9,969,656.40 and 4,120,792.80

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Solution

The fourth proportional to 6,640,216.80, 9,969,656.40 and 4,120,792.80 is: 6,186,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640,216.80 : 9,969,656.40 = 4,120,792.80 : x
  2. Step 2: Convert to fraction form
    6,640,216.80/9,969,656.40 = 4,120,792.80/x
  3. Step 3: Cross multiply
    6,640,216.80x = 9,969,656.40 × 4,120,792.80
  4. Step 4: Simplify right side
    6,640,216.80x = 41,082,888,311,593.92
  5. Step 5: Solve for x
    x = 41,082,888,311,593.92/6,640,216.80
  6. Step 6: Final answer
    x = 6,186,979.97

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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.