Home / 12,689,438.18-17,511,446.90-6,888,223.85

Finding the Fourth Proportional to 12,689,438.18, 17,511,446.90 and 6,888,223.85

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Solution

The fourth proportional to 12,689,438.18, 17,511,446.90 and 6,888,223.85 is: 9,505,760.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,438.18 : 17,511,446.90 = 6,888,223.85 : x
  2. Step 2: Convert to fraction form
    12,689,438.18/17,511,446.90 = 6,888,223.85/x
  3. Step 3: Cross multiply
    12,689,438.18x = 17,511,446.90 × 6,888,223.85
  4. Step 4: Simplify right side
    12,689,438.18x = 120,622,766,062,590.20
  5. Step 5: Solve for x
    x = 120,622,766,062,590.20/12,689,438.18
  6. Step 6: Final answer
    x = 9,505,760.96

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1.5x scale

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.