Home / 20,458,457.60-30,691,729.11-7,504,728.54

Finding the Fourth Proportional to 20,458,457.60, 30,691,729.11 and 7,504,728.54

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Solution

The fourth proportional to 20,458,457.60, 30,691,729.11 and 7,504,728.54 is: 11,258,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,457.60 : 30,691,729.11 = 7,504,728.54 : x
  2. Step 2: Convert to fraction form
    20,458,457.60/30,691,729.11 = 7,504,728.54/x
  3. Step 3: Cross multiply
    20,458,457.60x = 30,691,729.11 × 7,504,728.54
  4. Step 4: Simplify right side
    20,458,457.60x = 230,333,095,393,765.78
  5. Step 5: Solve for x
    x = 230,333,095,393,765.78/20,458,457.60
  6. Step 6: Final answer
    x = 11,258,575.79

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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.