Home / 13,320,310.27-18,382,027.95-7,208,738.77

Finding the Fourth Proportional to 13,320,310.27, 18,382,027.95 and 7,208,738.77

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Solution

The fourth proportional to 13,320,310.27, 18,382,027.95 and 7,208,738.77 is: 9,948,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,310.27 : 18,382,027.95 = 7,208,738.77 : x
  2. Step 2: Convert to fraction form
    13,320,310.27/18,382,027.95 = 7,208,738.77/x
  3. Step 3: Cross multiply
    13,320,310.27x = 18,382,027.95 × 7,208,738.77
  4. Step 4: Simplify right side
    13,320,310.27x = 132,511,237,508,433.55
  5. Step 5: Solve for x
    x = 132,511,237,508,433.55/13,320,310.27
  6. Step 6: Final answer
    x = 9,948,059.38

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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.