Home / 7,020,474.66-10,531,105.92-1,971,391.50

Finding the Fourth Proportional to 7,020,474.66, 10,531,105.92 and 1,971,391.50

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Solution

The fourth proportional to 7,020,474.66, 10,531,105.92 and 1,971,391.50 is: 2,957,197.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020,474.66 : 10,531,105.92 = 1,971,391.50 : x
  2. Step 2: Convert to fraction form
    7,020,474.66/10,531,105.92 = 1,971,391.50/x
  3. Step 3: Cross multiply
    7,020,474.66x = 10,531,105.92 × 1,971,391.50
  4. Step 4: Simplify right side
    7,020,474.66x = 20,760,932,696,287.68
  5. Step 5: Solve for x
    x = 20,760,932,696,287.68/7,020,474.66
  6. Step 6: Final answer
    x = 2,957,197.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.