Home / 80,568,467.20-120,852,700.80-69,608,972.80

Finding the Fourth Proportional to 80,568,467.20, 120,852,700.80 and 69,608,972.80

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Solution

The fourth proportional to 80,568,467.20, 120,852,700.80 and 69,608,972.80 is: 104,413,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,568,467.20 : 120,852,700.80 = 69,608,972.80 : x
  2. Step 2: Convert to fraction form
    80,568,467.20/120,852,700.80 = 69,608,972.80/x
  3. Step 3: Cross multiply
    80,568,467.20x = 120,852,700.80 × 69,608,972.80
  4. Step 4: Simplify right side
    80,568,467.20x = 8,412,432,362,793,738
  5. Step 5: Solve for x
    x = 8,412,432,362,793,738/80,568,467.20
  6. Step 6: Final answer
    x = 104,413,459.20

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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.