Home / 2,972,131.20-4,458,196.80-1,909,249.20

Finding the Fourth Proportional to 2,972,131.20, 4,458,196.80 and 1,909,249.20

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Solution

The fourth proportional to 2,972,131.20, 4,458,196.80 and 1,909,249.20 is: 2,863,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972,131.20 : 4,458,196.80 = 1,909,249.20 : x
  2. Step 2: Convert to fraction form
    2,972,131.20/4,458,196.80 = 1,909,249.20/x
  3. Step 3: Cross multiply
    2,972,131.20x = 4,458,196.80 × 1,909,249.20
  4. Step 4: Simplify right side
    2,972,131.20x = 8,511,808,673,842.56
  5. Step 5: Solve for x
    x = 8,511,808,673,842.56/2,972,131.20
  6. Step 6: Final answer
    x = 2,863,873.80

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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.