Home / 80,568,031.80-120,852,047.70-19,983,757.80

Finding the Fourth Proportional to 80,568,031.80, 120,852,047.70 and 19,983,757.80

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Solution

The fourth proportional to 80,568,031.80, 120,852,047.70 and 19,983,757.80 is: 29,975,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568,031.80 : 120,852,047.70 = 19,983,757.80 : x
  2. Step 2: Convert to fraction form
    80,568,031.80/120,852,047.70 = 19,983,757.80/x
  3. Step 3: Cross multiply
    80,568,031.80x = 120,852,047.70 × 19,983,757.80
  4. Step 4: Simplify right side
    80,568,031.80x = 2,415,078,050,870,847
  5. Step 5: Solve for x
    x = 2,415,078,050,870,847/80,568,031.80
  6. Step 6: Final answer
    x = 29,975,636.70

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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.