Home / 266,936,809.10-400,405,213.65-85,202,357.90

Finding the Fourth Proportional to 266,936,809.10, 400,405,213.65 and 85,202,357.90

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Solution

The fourth proportional to 266,936,809.10, 400,405,213.65 and 85,202,357.90 is: 127,803,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936,809.10 : 400,405,213.65 = 85,202,357.90 : x
  2. Step 2: Convert to fraction form
    266,936,809.10/400,405,213.65 = 85,202,357.90/x
  3. Step 3: Cross multiply
    266,936,809.10x = 400,405,213.65 × 85,202,357.90
  4. Step 4: Simplify right side
    266,936,809.10x = 34,115,468,318,433,264
  5. Step 5: Solve for x
    x = 34,115,468,318,433,264/266,936,809.10
  6. Step 6: Final answer
    x = 127,803,536.85

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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.