Home / 20,951,993.70-31,404,662.55-8,168,249.70

Finding the Fourth Proportional to 20,951,993.70, 31,404,662.55 and 8,168,249.70

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Solution

The fourth proportional to 20,951,993.70, 31,404,662.55 and 8,168,249.70 is: 12,243,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951,993.70 : 31,404,662.55 = 8,168,249.70 : x
  2. Step 2: Convert to fraction form
    20,951,993.70/31,404,662.55 = 8,168,249.70/x
  3. Step 3: Cross multiply
    20,951,993.70x = 31,404,662.55 × 8,168,249.70
  4. Step 4: Simplify right side
    20,951,993.70x = 256,521,125,452,638.75
  5. Step 5: Solve for x
    x = 256,521,125,452,638.75/20,951,993.70
  6. Step 6: Final answer
    x = 12,243,280.00

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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.