Home / 208,176,522.30-312,040,834.65-78,734,115.90

Finding the Fourth Proportional to 208,176,522.30, 312,040,834.65 and 78,734,115.90

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Solution

The fourth proportional to 208,176,522.30, 312,040,834.65 and 78,734,115.90 is: 118,016,474.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,176,522.30 : 312,040,834.65 = 78,734,115.90 : x
  2. Step 2: Convert to fraction form
    208,176,522.30/312,040,834.65 = 78,734,115.90/x
  3. Step 3: Cross multiply
    208,176,522.30x = 312,040,834.65 × 78,734,115.90
  4. Step 4: Simplify right side
    208,176,522.30x = 24,568,259,240,865,836
  5. Step 5: Solve for x
    x = 24,568,259,240,865,836/208,176,522.30
  6. Step 6: Final answer
    x = 118,016,474.53

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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.