Home / 6,440,123.20-9,661,351.20-3,237,188.80

Finding the Fourth Proportional to 6,440,123.20, 9,661,351.20 and 3,237,188.80

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Solution

The fourth proportional to 6,440,123.20, 9,661,351.20 and 3,237,188.80 is: 4,856,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440,123.20 : 9,661,351.20 = 3,237,188.80 : x
  2. Step 2: Convert to fraction form
    6,440,123.20/9,661,351.20 = 3,237,188.80/x
  3. Step 3: Cross multiply
    6,440,123.20x = 9,661,351.20 × 3,237,188.80
  4. Step 4: Simplify right side
    6,440,123.20x = 31,275,617,897,506.55
  5. Step 5: Solve for x
    x = 31,275,617,897,506.55/6,440,123.20
  6. Step 6: Final answer
    x = 4,856,369.50

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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.