Home / 206,193,364.08-309,410,651.88-76,890,303.60

Finding the Fourth Proportional to 206,193,364.08, 309,410,651.88 and 76,890,303.60

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Solution

The fourth proportional to 206,193,364.08, 309,410,651.88 and 76,890,303.60 is: 115,380,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,193,364.08 : 309,410,651.88 = 76,890,303.60 : x
  2. Step 2: Convert to fraction form
    206,193,364.08/309,410,651.88 = 76,890,303.60/x
  3. Step 3: Cross multiply
    206,193,364.08x = 309,410,651.88 × 76,890,303.60
  4. Step 4: Simplify right side
    206,193,364.08x = 23,790,678,960,127,108
  5. Step 5: Solve for x
    x = 23,790,678,960,127,108/206,193,364.08
  6. Step 6: Final answer
    x = 115,380,429.75

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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.