Home / 20,160,238.20-30,240,357.30-11,090,311.80

Finding the Fourth Proportional to 20,160,238.20, 30,240,357.30 and 11,090,311.80

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Solution

The fourth proportional to 20,160,238.20, 30,240,357.30 and 11,090,311.80 is: 16,635,467.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,238.20 : 30,240,357.30 = 11,090,311.80 : x
  2. Step 2: Convert to fraction form
    20,160,238.20/30,240,357.30 = 11,090,311.80/x
  3. Step 3: Cross multiply
    20,160,238.20x = 30,240,357.30 × 11,090,311.80
  4. Step 4: Simplify right side
    20,160,238.20x = 335,374,991,400,406.19
  5. Step 5: Solve for x
    x = 335,374,991,400,406.19/20,160,238.20
  6. Step 6: Final answer
    x = 16,635,467.70

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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.