Home / 2,679,477.80-4,019,216.70-2,660,815.40

Finding the Fourth Proportional to 2,679,477.80, 4,019,216.70 and 2,660,815.40

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Solution

The fourth proportional to 2,679,477.80, 4,019,216.70 and 2,660,815.40 is: 3,991,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679,477.80 : 4,019,216.70 = 2,660,815.40 : x
  2. Step 2: Convert to fraction form
    2,679,477.80/4,019,216.70 = 2,660,815.40/x
  3. Step 3: Cross multiply
    2,679,477.80x = 4,019,216.70 × 2,660,815.40
  4. Step 4: Simplify right side
    2,679,477.80x = 10,694,393,691,297.18
  5. Step 5: Solve for x
    x = 10,694,393,691,297.18/2,679,477.80
  6. Step 6: Final answer
    x = 3,991,223.10

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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.