Home / 20,218,205.80-30,331,245.30-8,703,650.80

Finding the Fourth Proportional to 20,218,205.80, 30,331,245.30 and 8,703,650.80

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Solution

The fourth proportional to 20,218,205.80, 30,331,245.30 and 8,703,650.80 is: 13,057,170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,218,205.80 : 30,331,245.30 = 8,703,650.80 : x
  2. Step 2: Convert to fraction form
    20,218,205.80/30,331,245.30 = 8,703,650.80/x
  3. Step 3: Cross multiply
    20,218,205.80x = 30,331,245.30 × 8,703,650.80
  4. Step 4: Simplify right side
    20,218,205.80x = 263,992,567,420,341.28
  5. Step 5: Solve for x
    x = 263,992,567,420,341.28/20,218,205.80
  6. Step 6: Final answer
    x = 13,057,170.85

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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.