Home / 8,085,123.30-12,129,434.55-2,405,921.70

Finding the Fourth Proportional to 8,085,123.30, 12,129,434.55 and 2,405,921.70

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Solution

The fourth proportional to 8,085,123.30, 12,129,434.55 and 2,405,921.70 is: 3,609,403.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,123.30 : 12,129,434.55 = 2,405,921.70 : x
  2. Step 2: Convert to fraction form
    8,085,123.30/12,129,434.55 = 2,405,921.70/x
  3. Step 3: Cross multiply
    8,085,123.30x = 12,129,434.55 × 2,405,921.70
  4. Step 4: Simplify right side
    8,085,123.30x = 29,182,469,792,574.74
  5. Step 5: Solve for x
    x = 29,182,469,792,574.74/8,085,123.30
  6. Step 6: Final answer
    x = 3,609,403.19

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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.