Home / 7,990,553.71-11,019,610.29-5,236,240.78

Finding the Fourth Proportional to 7,990,553.71, 11,019,610.29 and 5,236,240.78

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Solution

The fourth proportional to 7,990,553.71, 11,019,610.29 and 5,236,240.78 is: 7,221,193.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,553.71 : 11,019,610.29 = 5,236,240.78 : x
  2. Step 2: Convert to fraction form
    7,990,553.71/11,019,610.29 = 5,236,240.78/x
  3. Step 3: Cross multiply
    7,990,553.71x = 11,019,610.29 × 5,236,240.78
  4. Step 4: Simplify right side
    7,990,553.71x = 57,701,332,784,162.20
  5. Step 5: Solve for x
    x = 57,701,332,784,162.20/7,990,553.71
  6. Step 6: Final answer
    x = 7,221,193.28

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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.