Home / 11,911,580-17,858,659.12-3,819,949.68

Finding the Fourth Proportional to 11,911,580, 17,858,659.12 and 3,819,949.68

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Solution

The fourth proportional to 11,911,580, 17,858,659.12 and 3,819,949.68 is: 5,727,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911,580 : 17,858,659.12 = 3,819,949.68 : x
  2. Step 2: Convert to fraction form
    11,911,580/17,858,659.12 = 3,819,949.68/x
  3. Step 3: Cross multiply
    11,911,580x = 17,858,659.12 × 3,819,949.68
  4. Step 4: Simplify right side
    11,911,580x = 68,219,179,190,673.09
  5. Step 5: Solve for x
    x = 68,219,179,190,673.09/11,911,580
  6. Step 6: Final answer
    x = 5,727,131.01

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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.