Home / 3,987,914.90-5,489,468.33-3,477,731.54

Finding the Fourth Proportional to 3,987,914.90, 5,489,468.33 and 3,477,731.54

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Solution

The fourth proportional to 3,987,914.90, 5,489,468.33 and 3,477,731.54 is: 4,787,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,914.90 : 5,489,468.33 = 3,477,731.54 : x
  2. Step 2: Convert to fraction form
    3,987,914.90/5,489,468.33 = 3,477,731.54/x
  3. Step 3: Cross multiply
    3,987,914.90x = 5,489,468.33 × 3,477,731.54
  4. Step 4: Simplify right side
    3,987,914.90x = 19,090,897,104,236.13
  5. Step 5: Solve for x
    x = 19,090,897,104,236.13/3,987,914.90
  6. Step 6: Final answer
    x = 4,787,187.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.