Home / 13,879,641.80-20,820,279.42-5,360,022.92

Finding the Fourth Proportional to 13,879,641.80, 20,820,279.42 and 5,360,022.92

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Solution

The fourth proportional to 13,879,641.80, 20,820,279.42 and 5,360,022.92 is: 8,040,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,641.80 : 20,820,279.42 = 5,360,022.92 : x
  2. Step 2: Convert to fraction form
    13,879,641.80/20,820,279.42 = 5,360,022.92/x
  3. Step 3: Cross multiply
    13,879,641.80x = 20,820,279.42 × 5,360,022.92
  4. Step 4: Simplify right side
    13,879,641.80x = 111,597,174,892,004.31
  5. Step 5: Solve for x
    x = 111,597,174,892,004.31/13,879,641.80
  6. Step 6: Final answer
    x = 8,040,349.78

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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.