Home / 155,131,378.44-214,082,778.66-85,519,256.04

Finding the Fourth Proportional to 155,131,378.44, 214,082,778.66 and 85,519,256.04

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Solution

The fourth proportional to 155,131,378.44, 214,082,778.66 and 85,519,256.04 is: 118,017,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,131,378.44 : 214,082,778.66 = 85,519,256.04 : x
  2. Step 2: Convert to fraction form
    155,131,378.44/214,082,778.66 = 85,519,256.04/x
  3. Step 3: Cross multiply
    155,131,378.44x = 214,082,778.66 × 85,519,256.04
  4. Step 4: Simplify right side
    155,131,378.44x = 18,308,199,961,979,188
  5. Step 5: Solve for x
    x = 18,308,199,961,979,188/155,131,378.44
  6. Step 6: Final answer
    x = 118,017,387.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.