Home / 14,687,921.57-20,268,928.89-8,161,383.42

Finding the Fourth Proportional to 14,687,921.57, 20,268,928.89 and 8,161,383.42

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Solution

The fourth proportional to 14,687,921.57, 20,268,928.89 and 8,161,383.42 is: 11,262,485.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687,921.57 : 20,268,928.89 = 8,161,383.42 : x
  2. Step 2: Convert to fraction form
    14,687,921.57/20,268,928.89 = 8,161,383.42/x
  3. Step 3: Cross multiply
    14,687,921.57x = 20,268,928.89 × 8,161,383.42
  4. Step 4: Simplify right side
    14,687,921.57x = 165,422,500,184,005
  5. Step 5: Solve for x
    x = 165,422,500,184,005/14,687,921.57
  6. Step 6: Final answer
    x = 11,262,485.26

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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.