Home / 13,608,067.80-20,412,101.70-7,860,631.80

Finding the Fourth Proportional to 13,608,067.80, 20,412,101.70 and 7,860,631.80

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Solution

The fourth proportional to 13,608,067.80, 20,412,101.70 and 7,860,631.80 is: 11,790,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,067.80 : 20,412,101.70 = 7,860,631.80 : x
  2. Step 2: Convert to fraction form
    13,608,067.80/20,412,101.70 = 7,860,631.80/x
  3. Step 3: Cross multiply
    13,608,067.80x = 20,412,101.70 × 7,860,631.80
  4. Step 4: Simplify right side
    13,608,067.80x = 160,452,015,727,854.06
  5. Step 5: Solve for x
    x = 160,452,015,727,854.06/13,608,067.80
  6. Step 6: Final answer
    x = 11,790,947.70

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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.