Home / 20,341,168.80-30,511,753.20-12,263,265.60

Finding the Fourth Proportional to 20,341,168.80, 30,511,753.20 and 12,263,265.60

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Solution

The fourth proportional to 20,341,168.80, 30,511,753.20 and 12,263,265.60 is: 18,394,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,168.80 : 30,511,753.20 = 12,263,265.60 : x
  2. Step 2: Convert to fraction form
    20,341,168.80/30,511,753.20 = 12,263,265.60/x
  3. Step 3: Cross multiply
    20,341,168.80x = 30,511,753.20 × 12,263,265.60
  4. Step 4: Simplify right side
    20,341,168.80x = 374,173,733,413,249.88
  5. Step 5: Solve for x
    x = 374,173,733,413,249.88/20,341,168.80
  6. Step 6: Final answer
    x = 18,394,898.40

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1.5x scale

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.