Home / 8,085,115.30-12,129,422.55-2,405,913.70

Finding the Fourth Proportional to 8,085,115.30, 12,129,422.55 and 2,405,913.70

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Solution

The fourth proportional to 8,085,115.30, 12,129,422.55 and 2,405,913.70 is: 3,609,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,115.30 : 12,129,422.55 = 2,405,913.70 : x
  2. Step 2: Convert to fraction form
    8,085,115.30/12,129,422.55 = 2,405,913.70/x
  3. Step 3: Cross multiply
    8,085,115.30x = 12,129,422.55 × 2,405,913.70
  4. Step 4: Simplify right side
    8,085,115.30x = 29,182,343,886,133.94
  5. Step 5: Solve for x
    x = 29,182,343,886,133.94/8,085,115.30
  6. Step 6: Final answer
    x = 3,609,391.18

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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.