Home / 5,421,213.36-8,129,224.80-3,147,365.97

Finding the Fourth Proportional to 5,421,213.36, 8,129,224.80 and 3,147,365.97

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Solution

The fourth proportional to 5,421,213.36, 8,129,224.80 and 3,147,365.97 is: 4,719,542.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,213.36 : 8,129,224.80 = 3,147,365.97 : x
  2. Step 2: Convert to fraction form
    5,421,213.36/8,129,224.80 = 3,147,365.97/x
  3. Step 3: Cross multiply
    5,421,213.36x = 8,129,224.80 × 3,147,365.97
  4. Step 4: Simplify right side
    5,421,213.36x = 25,585,645,498,000.06
  5. Step 5: Solve for x
    x = 25,585,645,498,000.06/5,421,213.36
  6. Step 6: Final answer
    x = 4,719,542.25

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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.