Home / 266,936,820.35-400,405,230.53-85,202,369.15

Finding the Fourth Proportional to 266,936,820.35, 400,405,230.53 and 85,202,369.15

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Solution

The fourth proportional to 266,936,820.35, 400,405,230.53 and 85,202,369.15 is: 127,803,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936,820.35 : 400,405,230.53 = 85,202,369.15 : x
  2. Step 2: Convert to fraction form
    266,936,820.35/400,405,230.53 = 85,202,369.15/x
  3. Step 3: Cross multiply
    266,936,820.35x = 400,405,230.53 × 85,202,369.15
  4. Step 4: Simplify right side
    266,936,820.35x = 34,115,474,260,781,900
  5. Step 5: Solve for x
    x = 34,115,474,260,781,900/266,936,820.35
  6. Step 6: Final answer
    x = 127,803,553.73

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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.