Home / 80,256,266.80-120,384,400.20-26,405,335.60

Finding the Fourth Proportional to 80,256,266.80, 120,384,400.20 and 26,405,335.60

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Solution

The fourth proportional to 80,256,266.80, 120,384,400.20 and 26,405,335.60 is: 39,608,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,256,266.80 : 120,384,400.20 = 26,405,335.60 : x
  2. Step 2: Convert to fraction form
    80,256,266.80/120,384,400.20 = 26,405,335.60/x
  3. Step 3: Cross multiply
    80,256,266.80x = 120,384,400.20 × 26,405,335.60
  4. Step 4: Simplify right side
    80,256,266.80x = 3,178,790,488,285,707.50
  5. Step 5: Solve for x
    x = 3,178,790,488,285,707.50/80,256,266.80
  6. Step 6: Final answer
    x = 39,608,003.40

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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.