Home / 73,021,806.34-100,770,117.20-39,984,145.09

Finding the Fourth Proportional to 73,021,806.34, 100,770,117.20 and 39,984,145.09

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Solution

The fourth proportional to 73,021,806.34, 100,770,117.20 and 39,984,145.09 is: 55,178,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,021,806.34 : 100,770,117.20 = 39,984,145.09 : x
  2. Step 2: Convert to fraction form
    73,021,806.34/100,770,117.20 = 39,984,145.09/x
  3. Step 3: Cross multiply
    73,021,806.34x = 100,770,117.20 × 39,984,145.09
  4. Step 4: Simplify right side
    73,021,806.34x = 4,029,206,986,861,105
  5. Step 5: Solve for x
    x = 4,029,206,986,861,105/73,021,806.34
  6. Step 6: Final answer
    x = 55,178,133.61

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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.