Home / 20,110,965.80-30,166,448.70-6,647,793.80

Finding the Fourth Proportional to 20,110,965.80, 30,166,448.70 and 6,647,793.80

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Solution

The fourth proportional to 20,110,965.80, 30,166,448.70 and 6,647,793.80 is: 9,971,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110,965.80 : 30,166,448.70 = 6,647,793.80 : x
  2. Step 2: Convert to fraction form
    20,110,965.80/30,166,448.70 = 6,647,793.80/x
  3. Step 3: Cross multiply
    20,110,965.80x = 30,166,448.70 × 6,647,793.80
  4. Step 4: Simplify right side
    20,110,965.80x = 200,540,330,635,878.06
  5. Step 5: Solve for x
    x = 200,540,330,635,878.06/20,110,965.80
  6. Step 6: Final answer
    x = 9,971,690.70

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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.