Home / 80,520,120.10-120,780,180.15-19,935,846.82

Finding the Fourth Proportional to 80,520,120.10, 120,780,180.15 and 19,935,846.82

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Solution

The fourth proportional to 80,520,120.10, 120,780,180.15 and 19,935,846.82 is: 29,903,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520,120.10 : 120,780,180.15 = 19,935,846.82 : x
  2. Step 2: Convert to fraction form
    80,520,120.10/120,780,180.15 = 19,935,846.82/x
  3. Step 3: Cross multiply
    80,520,120.10x = 120,780,180.15 × 19,935,846.82
  4. Step 4: Simplify right side
    80,520,120.10x = 2,407,855,170,362,405
  5. Step 5: Solve for x
    x = 2,407,855,170,362,405/80,520,120.10
  6. Step 6: Final answer
    x = 29,903,770.23

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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.