Home / 3,138,557.60-4,707,836.40-2,949,600.80

Finding the Fourth Proportional to 3,138,557.60, 4,707,836.40 and 2,949,600.80

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Solution

The fourth proportional to 3,138,557.60, 4,707,836.40 and 2,949,600.80 is: 4,424,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,557.60 : 4,707,836.40 = 2,949,600.80 : x
  2. Step 2: Convert to fraction form
    3,138,557.60/4,707,836.40 = 2,949,600.80/x
  3. Step 3: Cross multiply
    3,138,557.60x = 4,707,836.40 × 2,949,600.80
  4. Step 4: Simplify right side
    3,138,557.60x = 13,886,238,011,709.12
  5. Step 5: Solve for x
    x = 13,886,238,011,709.12/3,138,557.60
  6. Step 6: Final answer
    x = 4,424,401.20

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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.