Home / 208,176,521.30-312,040,833.15-78,734,114.90

Finding the Fourth Proportional to 208,176,521.30, 312,040,833.15 and 78,734,114.90

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Solution

The fourth proportional to 208,176,521.30, 312,040,833.15 and 78,734,114.90 is: 118,016,473.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,176,521.30 : 312,040,833.15 = 78,734,114.90 : x
  2. Step 2: Convert to fraction form
    208,176,521.30/312,040,833.15 = 78,734,114.90/x
  3. Step 3: Cross multiply
    208,176,521.30x = 312,040,833.15 × 78,734,114.90
  4. Step 4: Simplify right side
    208,176,521.30x = 24,568,258,810,723,828
  5. Step 5: Solve for x
    x = 24,568,258,810,723,828/208,176,521.30
  6. Step 6: Final answer
    x = 118,016,473.03

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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.