Home / 206,193,363.08-309,410,650.38-76,890,302.60

Finding the Fourth Proportional to 206,193,363.08, 309,410,650.38 and 76,890,302.60

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Solution

The fourth proportional to 206,193,363.08, 309,410,650.38 and 76,890,302.60 is: 115,380,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,193,363.08 : 309,410,650.38 = 76,890,302.60 : x
  2. Step 2: Convert to fraction form
    206,193,363.08/309,410,650.38 = 76,890,302.60/x
  3. Step 3: Cross multiply
    206,193,363.08x = 309,410,650.38 × 76,890,302.60
  4. Step 4: Simplify right side
    206,193,363.08x = 23,790,678,535,381,004
  5. Step 5: Solve for x
    x = 23,790,678,535,381,004/206,193,363.08
  6. Step 6: Final answer
    x = 115,380,428.25

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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.