Home / 3,279,078.40-4,912,712.70-2,015,429.80

Finding the Fourth Proportional to 3,279,078.40, 4,912,712.70 and 2,015,429.80

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Solution

The fourth proportional to 3,279,078.40, 4,912,712.70 and 2,015,429.80 is: 3,019,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279,078.40 : 4,912,712.70 = 2,015,429.80 : x
  2. Step 2: Convert to fraction form
    3,279,078.40/4,912,712.70 = 2,015,429.80/x
  3. Step 3: Cross multiply
    3,279,078.40x = 4,912,712.70 × 2,015,429.80
  4. Step 4: Simplify right side
    3,279,078.40x = 9,901,227,574,418.46
  5. Step 5: Solve for x
    x = 9,901,227,574,418.46/3,279,078.40
  6. Step 6: Final answer
    x = 3,019,515.35

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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.