Home / 13,608,042.80-20,412,064.20-7,860,606.80

Finding the Fourth Proportional to 13,608,042.80, 20,412,064.20 and 7,860,606.80

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Solution

The fourth proportional to 13,608,042.80, 20,412,064.20 and 7,860,606.80 is: 11,790,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,042.80 : 20,412,064.20 = 7,860,606.80 : x
  2. Step 2: Convert to fraction form
    13,608,042.80/20,412,064.20 = 7,860,606.80/x
  3. Step 3: Cross multiply
    13,608,042.80x = 20,412,064.20 × 7,860,606.80
  4. Step 4: Simplify right side
    13,608,042.80x = 160,451,210,652,556.56
  5. Step 5: Solve for x
    x = 160,451,210,652,556.56/13,608,042.80
  6. Step 6: Final answer
    x = 11,790,910.20

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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.