Home / 143,440,715.43-197,932,924.82-80,715,720.32

Finding the Fourth Proportional to 143,440,715.43, 197,932,924.82 and 80,715,720.32

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Solution

The fourth proportional to 143,440,715.43, 197,932,924.82 and 80,715,720.32 is: 111,379,105.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440,715.43 : 197,932,924.82 = 80,715,720.32 : x
  2. Step 2: Convert to fraction form
    143,440,715.43/197,932,924.82 = 80,715,720.32/x
  3. Step 3: Cross multiply
    143,440,715.43x = 197,932,924.82 × 80,715,720.32
  4. Step 4: Simplify right side
    143,440,715.43x = 15,976,298,600,497,462
  5. Step 5: Solve for x
    x = 15,976,298,600,497,462/143,440,715.43
  6. Step 6: Final answer
    x = 111,379,105.66

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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.