Home / 5,420,951.76-8,130,555.07-1,581,872.80

Finding the Fourth Proportional to 5,420,951.76, 8,130,555.07 and 1,581,872.80

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Solution

The fourth proportional to 5,420,951.76, 8,130,555.07 and 1,581,872.80 is: 2,372,554.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420,951.76 : 8,130,555.07 = 1,581,872.80 : x
  2. Step 2: Convert to fraction form
    5,420,951.76/8,130,555.07 = 1,581,872.80/x
  3. Step 3: Cross multiply
    5,420,951.76x = 8,130,555.07 × 1,581,872.80
  4. Step 4: Simplify right side
    5,420,951.76x = 12,861,503,914,135.10
  5. Step 5: Solve for x
    x = 12,861,503,914,135.10/5,420,951.76
  6. Step 6: Final answer
    x = 2,372,554.58

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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.