Home / 206,008,626.57-308,965,000.41-76,677,144.81

Finding the Fourth Proportional to 206,008,626.57, 308,965,000.41 and 76,677,144.81

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Solution

The fourth proportional to 206,008,626.57, 308,965,000.41 and 76,677,144.81 is: 114,997,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,008,626.57 : 308,965,000.41 = 76,677,144.81 : x
  2. Step 2: Convert to fraction form
    206,008,626.57/308,965,000.41 = 76,677,144.81/x
  3. Step 3: Cross multiply
    206,008,626.57x = 308,965,000.41 × 76,677,144.81
  4. Step 4: Simplify right side
    206,008,626.57x = 23,690,554,077,659,284
  5. Step 5: Solve for x
    x = 23,690,554,077,659,284/206,008,626.57
  6. Step 6: Final answer
    x = 114,997,873.98

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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.