Home / 7,178,491.14-9,906,435.84-3,915,305.88

Finding the Fourth Proportional to 7,178,491.14, 9,906,435.84 and 3,915,305.88

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Solution

The fourth proportional to 7,178,491.14, 9,906,435.84 and 3,915,305.88 is: 5,403,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178,491.14 : 9,906,435.84 = 3,915,305.88 : x
  2. Step 2: Convert to fraction form
    7,178,491.14/9,906,435.84 = 3,915,305.88/x
  3. Step 3: Cross multiply
    7,178,491.14x = 9,906,435.84 × 3,915,305.88
  4. Step 4: Simplify right side
    7,178,491.14x = 38,786,726,494,194.73
  5. Step 5: Solve for x
    x = 38,786,726,494,194.73/7,178,491.14
  6. Step 6: Final answer
    x = 5,403,186.51

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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.