Home / 40,025,859.85-55,235,733.83-21,691,145.35

Finding the Fourth Proportional to 40,025,859.85, 55,235,733.83 and 21,691,145.35

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Solution

The fourth proportional to 40,025,859.85, 55,235,733.83 and 21,691,145.35 is: 29,933,806.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,859.85 : 55,235,733.83 = 21,691,145.35 : x
  2. Step 2: Convert to fraction form
    40,025,859.85/55,235,733.83 = 21,691,145.35/x
  3. Step 3: Cross multiply
    40,025,859.85x = 55,235,733.83 × 21,691,145.35
  4. Step 4: Simplify right side
    40,025,859.85x = 1,198,126,331,020,442.25
  5. Step 5: Solve for x
    x = 1,198,126,331,020,442.25/40,025,859.85
  6. Step 6: Final answer
    x = 29,933,806.18

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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.