Home / 8,071,228.48-11,131,993.20-5,170,887.04

Finding the Fourth Proportional to 8,071,228.48, 11,131,993.20 and 5,170,887.04

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Solution

The fourth proportional to 8,071,228.48, 11,131,993.20 and 5,170,887.04 is: 7,131,786.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071,228.48 : 11,131,993.20 = 5,170,887.04 : x
  2. Step 2: Convert to fraction form
    8,071,228.48/11,131,993.20 = 5,170,887.04/x
  3. Step 3: Cross multiply
    8,071,228.48x = 11,131,993.20 × 5,170,887.04
  4. Step 4: Simplify right side
    8,071,228.48x = 57,562,279,367,248.12
  5. Step 5: Solve for x
    x = 57,562,279,367,248.12/8,071,228.48
  6. Step 6: Final answer
    x = 7,131,786.63

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1.5x scale

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.