Home / 8,085,115.80-12,129,423.30-2,405,914.20

Finding the Fourth Proportional to 8,085,115.80, 12,129,423.30 and 2,405,914.20

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Solution

The fourth proportional to 8,085,115.80, 12,129,423.30 and 2,405,914.20 is: 3,609,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,115.80 : 12,129,423.30 = 2,405,914.20 : x
  2. Step 2: Convert to fraction form
    8,085,115.80/12,129,423.30 = 2,405,914.20/x
  3. Step 3: Cross multiply
    8,085,115.80x = 12,129,423.30 × 2,405,914.20
  4. Step 4: Simplify right side
    8,085,115.80x = 29,182,351,755,280.86
  5. Step 5: Solve for x
    x = 29,182,351,755,280.86/8,085,115.80
  6. Step 6: Final answer
    x = 3,609,391.93

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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.