Home / 221,276,758.40-331,915,137.60-206,160,214.40

Finding the Fourth Proportional to 221,276,758.40, 331,915,137.60 and 206,160,214.40

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Solution

The fourth proportional to 221,276,758.40, 331,915,137.60 and 206,160,214.40 is: 309,240,321.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,276,758.40 : 331,915,137.60 = 206,160,214.40 : x
  2. Step 2: Convert to fraction form
    221,276,758.40/331,915,137.60 = 206,160,214.40/x
  3. Step 3: Cross multiply
    221,276,758.40x = 331,915,137.60 × 206,160,214.40
  4. Step 4: Simplify right side
    221,276,758.40x = 68,427,695,930,221,512
  5. Step 5: Solve for x
    x = 68,427,695,930,221,512/221,276,758.40
  6. Step 6: Final answer
    x = 309,240,321.60

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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.