Home / 3,990,903.10-5,979,465.60-1,856,609.80

Finding the Fourth Proportional to 3,990,903.10, 5,979,465.60 and 1,856,609.80

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Solution

The fourth proportional to 3,990,903.10, 5,979,465.60 and 1,856,609.80 is: 2,781,709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,903.10 : 5,979,465.60 = 1,856,609.80 : x
  2. Step 2: Convert to fraction form
    3,990,903.10/5,979,465.60 = 1,856,609.80/x
  3. Step 3: Cross multiply
    3,990,903.10x = 5,979,465.60 × 1,856,609.80
  4. Step 4: Simplify right side
    3,990,903.10x = 11,101,534,431,722.88
  5. Step 5: Solve for x
    x = 11,101,534,431,722.88/3,990,903.10
  6. Step 6: Final answer
    x = 2,781,709.84

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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.