Home / 6,980,206.16-9,629,451.24-4,079,719.28

Finding the Fourth Proportional to 6,980,206.16, 9,629,451.24 and 4,079,719.28

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Solution

The fourth proportional to 6,980,206.16, 9,629,451.24 and 4,079,719.28 is: 5,628,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980,206.16 : 9,629,451.24 = 4,079,719.28 : x
  2. Step 2: Convert to fraction form
    6,980,206.16/9,629,451.24 = 4,079,719.28/x
  3. Step 3: Cross multiply
    6,980,206.16x = 9,629,451.24 × 4,079,719.28
  4. Step 4: Simplify right side
    6,980,206.16x = 39,285,457,879,647.91
  5. Step 5: Solve for x
    x = 39,285,457,879,647.91/6,980,206.16
  6. Step 6: Final answer
    x = 5,628,122.86

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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.