Home / 20,458,385.53-30,691,620.89-7,504,656.46

Finding the Fourth Proportional to 20,458,385.53, 30,691,620.89 and 7,504,656.46

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Solution

The fourth proportional to 20,458,385.53, 30,691,620.89 and 7,504,656.46 is: 11,258,467.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,385.53 : 30,691,620.89 = 7,504,656.46 : x
  2. Step 2: Convert to fraction form
    20,458,385.53/30,691,620.89 = 7,504,656.46/x
  3. Step 3: Cross multiply
    20,458,385.53x = 30,691,620.89 × 7,504,656.46
  4. Step 4: Simplify right side
    20,458,385.53x = 230,330,070,980,009.44
  5. Step 5: Solve for x
    x = 230,330,070,980,009.44/20,458,385.53
  6. Step 6: Final answer
    x = 11,258,467.62

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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.