Home / 12,520,882.89-18,783,107.64-3,885,729.39

Finding the Fourth Proportional to 12,520,882.89, 18,783,107.64 and 3,885,729.39

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Solution

The fourth proportional to 12,520,882.89, 18,783,107.64 and 3,885,729.39 is: 5,829,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520,882.89 : 18,783,107.64 = 3,885,729.39 : x
  2. Step 2: Convert to fraction form
    12,520,882.89/18,783,107.64 = 3,885,729.39/x
  3. Step 3: Cross multiply
    12,520,882.89x = 18,783,107.64 × 3,885,729.39
  4. Step 4: Simplify right side
    12,520,882.89x = 72,986,073,392,281.55
  5. Step 5: Solve for x
    x = 72,986,073,392,281.55/12,520,882.89
  6. Step 6: Final answer
    x = 5,829,147.52

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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.