Home / 20,539,928.85-30,760,991.01-11,885,785.85

Finding the Fourth Proportional to 20,539,928.85, 30,760,991.01 and 11,885,785.85

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Solution

The fourth proportional to 20,539,928.85, 30,760,991.01 and 11,885,785.85 is: 17,800,380.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539,928.85 : 30,760,991.01 = 11,885,785.85 : x
  2. Step 2: Convert to fraction form
    20,539,928.85/30,760,991.01 = 11,885,785.85/x
  3. Step 3: Cross multiply
    20,539,928.85x = 30,760,991.01 × 11,885,785.85
  4. Step 4: Simplify right side
    20,539,928.85x = 365,618,551,524,830.31
  5. Step 5: Solve for x
    x = 365,618,551,524,830.31/20,539,928.85
  6. Step 6: Final answer
    x = 17,800,380.62

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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.