Home / 2,138,830.60-3,208,245.90-1,342,568.20

Finding the Fourth Proportional to 2,138,830.60, 3,208,245.90 and 1,342,568.20

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Solution

The fourth proportional to 2,138,830.60, 3,208,245.90 and 1,342,568.20 is: 2,013,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,830.60 : 3,208,245.90 = 1,342,568.20 : x
  2. Step 2: Convert to fraction form
    2,138,830.60/3,208,245.90 = 1,342,568.20/x
  3. Step 3: Cross multiply
    2,138,830.60x = 3,208,245.90 × 1,342,568.20
  4. Step 4: Simplify right side
    2,138,830.60x = 4,307,288,923,120.38
  5. Step 5: Solve for x
    x = 4,307,288,923,120.38/2,138,830.60
  6. Step 6: Final answer
    x = 2,013,852.30

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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.