Home / 408,061,261.35-612,128,649.95-131,719,027.59

Finding the Fourth Proportional to 408,061,261.35, 612,128,649.95 and 131,719,027.59

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Solution

The fourth proportional to 408,061,261.35, 612,128,649.95 and 131,719,027.59 is: 197,590,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,061,261.35 : 612,128,649.95 = 131,719,027.59 : x
  2. Step 2: Convert to fraction form
    408,061,261.35/612,128,649.95 = 131,719,027.59/x
  3. Step 3: Cross multiply
    408,061,261.35x = 612,128,649.95 × 131,719,027.59
  4. Step 4: Simplify right side
    408,061,261.35x = 80,628,990,530,734,912
  5. Step 5: Solve for x
    x = 80,628,990,530,734,912/408,061,261.35
  6. Step 6: Final answer
    x = 197,590,406.56

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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.