Home / 12,268,879.40-18,403,362.84-3,749,180.33

Finding the Fourth Proportional to 12,268,879.40, 18,403,362.84 and 3,749,180.33

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Solution

The fourth proportional to 12,268,879.40, 18,403,362.84 and 3,749,180.33 is: 5,623,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268,879.40 : 18,403,362.84 = 3,749,180.33 : x
  2. Step 2: Convert to fraction form
    12,268,879.40/18,403,362.84 = 3,749,180.33/x
  3. Step 3: Cross multiply
    12,268,879.40x = 18,403,362.84 × 3,749,180.33
  4. Step 4: Simplify right side
    12,268,879.40x = 68,997,526,025,648.77
  5. Step 5: Solve for x
    x = 68,997,526,025,648.77/12,268,879.40
  6. Step 6: Final answer
    x = 5,623,783.87

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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.