Home / 13,630,721.80-20,428,716.30-7,244,033.80

Finding the Fourth Proportional to 13,630,721.80, 20,428,716.30 and 7,244,033.80

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Solution

The fourth proportional to 13,630,721.80, 20,428,716.30 and 7,244,033.80 is: 10,856,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630,721.80 : 20,428,716.30 = 7,244,033.80 : x
  2. Step 2: Convert to fraction form
    13,630,721.80/20,428,716.30 = 7,244,033.80/x
  3. Step 3: Cross multiply
    13,630,721.80x = 20,428,716.30 × 7,244,033.80
  4. Step 4: Simplify right side
    13,630,721.80x = 147,986,311,367,810.94
  5. Step 5: Solve for x
    x = 147,986,311,367,810.94/13,630,721.80
  6. Step 6: Final answer
    x = 10,856,821.34

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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.