Home / 20,983,530-31,440,498.09-12,761,302.23

Finding the Fourth Proportional to 20,983,530, 31,440,498.09 and 12,761,302.23

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Solution

The fourth proportional to 20,983,530, 31,440,498.09 and 12,761,302.23 is: 19,120,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,983,530 : 31,440,498.09 = 12,761,302.23 : x
  2. Step 2: Convert to fraction form
    20,983,530/31,440,498.09 = 12,761,302.23/x
  3. Step 3: Cross multiply
    20,983,530x = 31,440,498.09 × 12,761,302.23
  4. Step 4: Simplify right side
    20,983,530x = 401,221,698,388,227.75
  5. Step 5: Solve for x
    x = 401,221,698,388,227.75/20,983,530
  6. Step 6: Final answer
    x = 19,120,791.32

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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.