Home / 12,148,520.40-18,223,072.20-3,629,134.80

Finding the Fourth Proportional to 12,148,520.40, 18,223,072.20 and 3,629,134.80

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Solution

The fourth proportional to 12,148,520.40, 18,223,072.20 and 3,629,134.80 is: 5,443,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148,520.40 : 18,223,072.20 = 3,629,134.80 : x
  2. Step 2: Convert to fraction form
    12,148,520.40/18,223,072.20 = 3,629,134.80/x
  3. Step 3: Cross multiply
    12,148,520.40x = 18,223,072.20 × 3,629,134.80
  4. Step 4: Simplify right side
    12,148,520.40x = 66,133,985,483,932.55
  5. Step 5: Solve for x
    x = 66,133,985,483,932.55/12,148,520.40
  6. Step 6: Final answer
    x = 5,443,789.31

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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.