Home / 8,109,205.97-11,131,094.56-7,170,876.05

Finding the Fourth Proportional to 8,109,205.97, 11,131,094.56 and 7,170,876.05

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Solution

The fourth proportional to 8,109,205.97, 11,131,094.56 and 7,170,876.05 is: 9,843,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109,205.97 : 11,131,094.56 = 7,170,876.05 : x
  2. Step 2: Convert to fraction form
    8,109,205.97/11,131,094.56 = 7,170,876.05/x
  3. Step 3: Cross multiply
    8,109,205.97x = 11,131,094.56 × 7,170,876.05
  4. Step 4: Simplify right side
    8,109,205.97x = 79,819,699,390,589.30
  5. Step 5: Solve for x
    x = 79,819,699,390,589.30/8,109,205.97
  6. Step 6: Final answer
    x = 9,843,096.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.