Home / 12,278,090.19-18,419,027.04-4,189,180.31

Finding the Fourth Proportional to 12,278,090.19, 18,419,027.04 and 4,189,180.31

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Solution

The fourth proportional to 12,278,090.19, 18,419,027.04 and 4,189,180.31 is: 6,284,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,090.19 : 18,419,027.04 = 4,189,180.31 : x
  2. Step 2: Convert to fraction form
    12,278,090.19/18,419,027.04 = 4,189,180.31/x
  3. Step 3: Cross multiply
    12,278,090.19x = 18,419,027.04 × 4,189,180.31
  4. Step 4: Simplify right side
    12,278,090.19x = 77,160,625,313,230.45
  5. Step 5: Solve for x
    x = 77,160,625,313,230.45/12,278,090.19
  6. Step 6: Final answer
    x = 6,284,415.91

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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.