Home / 143,440,713.92-197,932,922.75-80,715,718.81

Finding the Fourth Proportional to 143,440,713.92, 197,932,922.75 and 80,715,718.81

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Solution

The fourth proportional to 143,440,713.92, 197,932,922.75 and 80,715,718.81 is: 111,379,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440,713.92 : 197,932,922.75 = 80,715,718.81 : x
  2. Step 2: Convert to fraction form
    143,440,713.92/197,932,922.75 = 80,715,718.81/x
  3. Step 3: Cross multiply
    143,440,713.92x = 197,932,922.75 × 80,715,718.81
  4. Step 4: Simplify right side
    143,440,713.92x = 15,976,298,136,379,658
  5. Step 5: Solve for x
    x = 15,976,298,136,379,658/143,440,713.92
  6. Step 6: Final answer
    x = 111,379,103.60

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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.