Home / 3,198,112.86-4,797,667.80-1,918,419.53

Finding the Fourth Proportional to 3,198,112.86, 4,797,667.80 and 1,918,419.53

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Solution

The fourth proportional to 3,198,112.86, 4,797,667.80 and 1,918,419.53 is: 2,877,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198,112.86 : 4,797,667.80 = 1,918,419.53 : x
  2. Step 2: Convert to fraction form
    3,198,112.86/4,797,667.80 = 1,918,419.53/x
  3. Step 3: Cross multiply
    3,198,112.86x = 4,797,667.80 × 1,918,419.53
  4. Step 4: Simplify right side
    3,198,112.86x = 9,203,939,605,972.13
  5. Step 5: Solve for x
    x = 9,203,939,605,972.13/3,198,112.86
  6. Step 6: Final answer
    x = 2,877,928.33

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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.