Home / 133,057,779.20-199,568,006.40-42,190,553.60

Finding the Fourth Proportional to 133,057,779.20, 199,568,006.40 and 42,190,553.60

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Solution

The fourth proportional to 133,057,779.20, 199,568,006.40 and 42,190,553.60 is: 63,279,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057,779.20 : 199,568,006.40 = 42,190,553.60 : x
  2. Step 2: Convert to fraction form
    133,057,779.20/199,568,006.40 = 42,190,553.60/x
  3. Step 3: Cross multiply
    133,057,779.20x = 199,568,006.40 × 42,190,553.60
  4. Step 4: Simplify right side
    133,057,779.20x = 8,419,884,670,864,344
  5. Step 5: Solve for x
    x = 8,419,884,670,864,344/133,057,779.20
  6. Step 6: Final answer
    x = 63,279,912.84

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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.