Home / 13,122,124.24-18,108,542.67-7,320,906.88

Finding the Fourth Proportional to 13,122,124.24, 18,108,542.67 and 7,320,906.88

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Solution

The fourth proportional to 13,122,124.24, 18,108,542.67 and 7,320,906.88 is: 10,102,857.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,124.24 : 18,108,542.67 = 7,320,906.88 : x
  2. Step 2: Convert to fraction form
    13,122,124.24/18,108,542.67 = 7,320,906.88/x
  3. Step 3: Cross multiply
    13,122,124.24x = 18,108,542.67 × 7,320,906.88
  4. Step 4: Simplify right side
    13,122,124.24x = 132,570,954,619,576.58
  5. Step 5: Solve for x
    x = 132,570,954,619,576.58/13,122,124.24
  6. Step 6: Final answer
    x = 10,102,857.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.