Home / 39,629,597.76-54,691,840.17-21,991,839.12

Finding the Fourth Proportional to 39,629,597.76, 54,691,840.17 and 21,991,839.12

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Solution

The fourth proportional to 39,629,597.76, 54,691,840.17 and 21,991,839.12 is: 30,350,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,629,597.76 : 54,691,840.17 = 21,991,839.12 : x
  2. Step 2: Convert to fraction form
    39,629,597.76/54,691,840.17 = 21,991,839.12/x
  3. Step 3: Cross multiply
    39,629,597.76x = 54,691,840.17 × 21,991,839.12
  4. Step 4: Simplify right side
    39,629,597.76x = 1,202,774,150,195,393.50
  5. Step 5: Solve for x
    x = 1,202,774,150,195,393.50/39,629,597.76
  6. Step 6: Final answer
    x = 30,350,400.16

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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.