Home / 15,190,540.72-20,962,952.84-8,315,062

Finding the Fourth Proportional to 15,190,540.72, 20,962,952.84 and 8,315,062

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Solution

The fourth proportional to 15,190,540.72, 20,962,952.84 and 8,315,062 is: 11,474,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190,540.72 : 20,962,952.84 = 8,315,062 : x
  2. Step 2: Convert to fraction form
    15,190,540.72/20,962,952.84 = 8,315,062/x
  3. Step 3: Cross multiply
    15,190,540.72x = 20,962,952.84 × 8,315,062
  4. Step 4: Simplify right side
    15,190,540.72x = 174,308,252,567,676.09
  5. Step 5: Solve for x
    x = 174,308,252,567,676.09/15,190,540.72
  6. Step 6: Final answer
    x = 11,474,789.20

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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.