Home / 20,458,391.40-30,691,629.71-7,504,662.35

Finding the Fourth Proportional to 20,458,391.40, 30,691,629.71 and 7,504,662.35

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Solution

The fourth proportional to 20,458,391.40, 30,691,629.71 and 7,504,662.35 is: 11,258,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,391.40 : 30,691,629.71 = 7,504,662.35 : x
  2. Step 2: Convert to fraction form
    20,458,391.40/30,691,629.71 = 7,504,662.35/x
  3. Step 3: Cross multiply
    20,458,391.40x = 30,691,629.71 × 7,504,662.35
  4. Step 4: Simplify right side
    20,458,391.40x = 230,330,317,753,796.94
  5. Step 5: Solve for x
    x = 230,330,317,753,796.94/20,458,391.40
  6. Step 6: Final answer
    x = 11,258,476.45

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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.