Home / 15,540,961.20-23,311,441.80-12,139,738.80

Finding the Fourth Proportional to 15,540,961.20, 23,311,441.80 and 12,139,738.80

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Solution

The fourth proportional to 15,540,961.20, 23,311,441.80 and 12,139,738.80 is: 18,209,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540,961.20 : 23,311,441.80 = 12,139,738.80 : x
  2. Step 2: Convert to fraction form
    15,540,961.20/23,311,441.80 = 12,139,738.80/x
  3. Step 3: Cross multiply
    15,540,961.20x = 23,311,441.80 × 12,139,738.80
  4. Step 4: Simplify right side
    15,540,961.20x = 282,994,814,503,401.88
  5. Step 5: Solve for x
    x = 282,994,814,503,401.88/15,540,961.20
  6. Step 6: Final answer
    x = 18,209,608.20

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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.