Home / 13,642,129.61-20,445,423.82-5,545,647.85

Finding the Fourth Proportional to 13,642,129.61, 20,445,423.82 and 5,545,647.85

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Solution

The fourth proportional to 13,642,129.61, 20,445,423.82 and 5,545,647.85 is: 8,311,247.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,129.61 : 20,445,423.82 = 5,545,647.85 : x
  2. Step 2: Convert to fraction form
    13,642,129.61/20,445,423.82 = 5,545,647.85/x
  3. Step 3: Cross multiply
    13,642,129.61x = 20,445,423.82 × 5,545,647.85
  4. Step 4: Simplify right side
    13,642,129.61x = 113,383,120,649,721.78
  5. Step 5: Solve for x
    x = 113,383,120,649,721.78/13,642,129.61
  6. Step 6: Final answer
    x = 8,311,247.87

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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.