Home / 82,442,747.70-123,664,121.55-47,863,653.30

Finding the Fourth Proportional to 82,442,747.70, 123,664,121.55 and 47,863,653.30

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Solution

The fourth proportional to 82,442,747.70, 123,664,121.55 and 47,863,653.30 is: 71,795,479.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,442,747.70 : 123,664,121.55 = 47,863,653.30 : x
  2. Step 2: Convert to fraction form
    82,442,747.70/123,664,121.55 = 47,863,653.30/x
  3. Step 3: Cross multiply
    82,442,747.70x = 123,664,121.55 × 47,863,653.30
  4. Step 4: Simplify right side
    82,442,747.70x = 5,919,016,639,518,258
  5. Step 5: Solve for x
    x = 5,919,016,639,518,258/82,442,747.70
  6. Step 6: Final answer
    x = 71,795,479.95

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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.