Home / 3,990,870.10-5,979,416.10-1,856,576.80

Finding the Fourth Proportional to 3,990,870.10, 5,979,416.10 and 1,856,576.80

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Solution

The fourth proportional to 3,990,870.10, 5,979,416.10 and 1,856,576.80 is: 2,781,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,870.10 : 5,979,416.10 = 1,856,576.80 : x
  2. Step 2: Convert to fraction form
    3,990,870.10/5,979,416.10 = 1,856,576.80/x
  3. Step 3: Cross multiply
    3,990,870.10x = 5,979,416.10 × 1,856,576.80
  4. Step 4: Simplify right side
    3,990,870.10x = 11,101,245,208,806.48
  5. Step 5: Solve for x
    x = 11,101,245,208,806.48/3,990,870.10
  6. Step 6: Final answer
    x = 2,781,660.37

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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.