Home / 155,135,343.62-214,088,218.29-85,523,215.64

Finding the Fourth Proportional to 155,135,343.62, 214,088,218.29 and 85,523,215.64

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Solution

The fourth proportional to 155,135,343.62, 214,088,218.29 and 85,523,215.64 is: 118,022,833.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,135,343.62 : 214,088,218.29 = 85,523,215.64 : x
  2. Step 2: Convert to fraction form
    155,135,343.62/214,088,218.29 = 85,523,215.64/x
  3. Step 3: Cross multiply
    155,135,343.62x = 214,088,218.29 × 85,523,215.64
  4. Step 4: Simplify right side
    155,135,343.62x = 18,309,512,857,728,620
  5. Step 5: Solve for x
    x = 18,309,512,857,728,620/155,135,343.62
  6. Step 6: Final answer
    x = 118,022,833.68

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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.