Home / 20,733,240.80-31,099,861.20-13,193,631.20

Finding the Fourth Proportional to 20,733,240.80, 31,099,861.20 and 13,193,631.20

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Solution

The fourth proportional to 20,733,240.80, 31,099,861.20 and 13,193,631.20 is: 19,790,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733,240.80 : 31,099,861.20 = 13,193,631.20 : x
  2. Step 2: Convert to fraction form
    20,733,240.80/31,099,861.20 = 13,193,631.20/x
  3. Step 3: Cross multiply
    20,733,240.80x = 31,099,861.20 × 13,193,631.20
  4. Step 4: Simplify right side
    20,733,240.80x = 410,320,099,043,989.44
  5. Step 5: Solve for x
    x = 410,320,099,043,989.44/20,733,240.80
  6. Step 6: Final answer
    x = 19,790,446.80

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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.