Home / 3,138,644.60-4,707,966.90-2,949,687.80

Finding the Fourth Proportional to 3,138,644.60, 4,707,966.90 and 2,949,687.80

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Solution

The fourth proportional to 3,138,644.60, 4,707,966.90 and 2,949,687.80 is: 4,424,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,644.60 : 4,707,966.90 = 2,949,687.80 : x
  2. Step 2: Convert to fraction form
    3,138,644.60/4,707,966.90 = 2,949,687.80/x
  3. Step 3: Cross multiply
    3,138,644.60x = 4,707,966.90 × 2,949,687.80
  4. Step 4: Simplify right side
    3,138,644.60x = 13,887,032,527,733.82
  5. Step 5: Solve for x
    x = 13,887,032,527,733.82/3,138,644.60
  6. Step 6: Final answer
    x = 4,424,531.70

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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.