Home / 434,987,512.12-652,542,427.50-139,783,662.52

Finding the Fourth Proportional to 434,987,512.12, 652,542,427.50 and 139,783,662.52

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Solution

The fourth proportional to 434,987,512.12, 652,542,427.50 and 139,783,662.52 is: 209,695,147.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,987,512.12 : 652,542,427.50 = 139,783,662.52 : x
  2. Step 2: Convert to fraction form
    434,987,512.12/652,542,427.50 = 139,783,662.52/x
  3. Step 3: Cross multiply
    434,987,512.12x = 652,542,427.50 × 139,783,662.52
  4. Step 4: Simplify right side
    434,987,512.12x = 91,214,770,465,641,568
  5. Step 5: Solve for x
    x = 91,214,770,465,641,568/434,987,512.12
  6. Step 6: Final answer
    x = 209,695,147.39

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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.