Home / 126,177,789.90-189,284,399.55-39,907,200.90

Finding the Fourth Proportional to 126,177,789.90, 189,284,399.55 and 39,907,200.90

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Solution

The fourth proportional to 126,177,789.90, 189,284,399.55 and 39,907,200.90 is: 59,866,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177,789.90 : 189,284,399.55 = 39,907,200.90 : x
  2. Step 2: Convert to fraction form
    126,177,789.90/189,284,399.55 = 39,907,200.90/x
  3. Step 3: Cross multiply
    126,177,789.90x = 189,284,399.55 × 39,907,200.90
  4. Step 4: Simplify right side
    126,177,789.90x = 7,553,810,560,077,720
  5. Step 5: Solve for x
    x = 7,553,810,560,077,720/126,177,789.90
  6. Step 6: Final answer
    x = 59,866,404.11

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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.