Home / 15,207,825.39-20,985,996.54-8,681,195.31

Finding the Fourth Proportional to 15,207,825.39, 20,985,996.54 and 8,681,195.31

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Solution

The fourth proportional to 15,207,825.39, 20,985,996.54 and 8,681,195.31 is: 11,979,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,207,825.39 : 20,985,996.54 = 8,681,195.31 : x
  2. Step 2: Convert to fraction form
    15,207,825.39/20,985,996.54 = 8,681,195.31/x
  3. Step 3: Cross multiply
    15,207,825.39x = 20,985,996.54 × 8,681,195.31
  4. Step 4: Simplify right side
    15,207,825.39x = 182,183,534,738,724.22
  5. Step 5: Solve for x
    x = 182,183,534,738,724.22/15,207,825.39
  6. Step 6: Final answer
    x = 11,979,591.43

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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.