Home / 427,468,160.80-641,616,874.28-206,295,149.50

Finding the Fourth Proportional to 427,468,160.80, 641,616,874.28 and 206,295,149.50

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Solution

The fourth proportional to 427,468,160.80, 641,616,874.28 and 206,295,149.50 is: 309,642,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,468,160.80 : 641,616,874.28 = 206,295,149.50 : x
  2. Step 2: Convert to fraction form
    427,468,160.80/641,616,874.28 = 206,295,149.50/x
  3. Step 3: Cross multiply
    427,468,160.80x = 641,616,874.28 × 206,295,149.50
  4. Step 4: Simplify right side
    427,468,160.80x = 132,362,448,999,451,344
  5. Step 5: Solve for x
    x = 132,362,448,999,451,344/427,468,160.80
  6. Step 6: Final answer
    x = 309,642,825.21

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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.