Home / 6,689,495.40-9,231,348.72-3,898,440.72

Finding the Fourth Proportional to 6,689,495.40, 9,231,348.72 and 3,898,440.72

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Solution

The fourth proportional to 6,689,495.40, 9,231,348.72 and 3,898,440.72 is: 5,379,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689,495.40 : 9,231,348.72 = 3,898,440.72 : x
  2. Step 2: Convert to fraction form
    6,689,495.40/9,231,348.72 = 3,898,440.72/x
  3. Step 3: Cross multiply
    6,689,495.40x = 9,231,348.72 × 3,898,440.72
  4. Step 4: Simplify right side
    6,689,495.40x = 35,987,865,750,567.88
  5. Step 5: Solve for x
    x = 35,987,865,750,567.88/6,689,495.40
  6. Step 6: Final answer
    x = 5,379,757.90

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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.