Home / 2,137,644.45-2,949,970.13-1,278,204.71

Finding the Fourth Proportional to 2,137,644.45, 2,949,970.13 and 1,278,204.71

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Solution

The fourth proportional to 2,137,644.45, 2,949,970.13 and 1,278,204.71 is: 1,763,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137,644.45 : 2,949,970.13 = 1,278,204.71 : x
  2. Step 2: Convert to fraction form
    2,137,644.45/2,949,970.13 = 1,278,204.71/x
  3. Step 3: Cross multiply
    2,137,644.45x = 2,949,970.13 × 1,278,204.71
  4. Step 4: Simplify right side
    2,137,644.45x = 3,770,665,714,525.31
  5. Step 5: Solve for x
    x = 3,770,665,714,525.31/2,137,644.45
  6. Step 6: Final answer
    x = 1,763,934.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.