Home / 266,936,808.10-400,405,212.15-85,202,356.90

Finding the Fourth Proportional to 266,936,808.10, 400,405,212.15 and 85,202,356.90

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Solution

The fourth proportional to 266,936,808.10, 400,405,212.15 and 85,202,356.90 is: 127,803,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,936,808.10 : 400,405,212.15 = 85,202,356.90 : x
  2. Step 2: Convert to fraction form
    266,936,808.10/400,405,212.15 = 85,202,356.90/x
  3. Step 3: Cross multiply
    266,936,808.10x = 400,405,212.15 × 85,202,356.90
  4. Step 4: Simplify right side
    266,936,808.10x = 34,115,467,790,224,516
  5. Step 5: Solve for x
    x = 34,115,467,790,224,516/266,936,808.10
  6. Step 6: Final answer
    x = 127,803,535.35

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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.