Home / 1,947,042.38-2,685,173.13-1,621,433.61

Finding the Fourth Proportional to 1,947,042.38, 2,685,173.13 and 1,621,433.61

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Solution

The fourth proportional to 1,947,042.38, 2,685,173.13 and 1,621,433.61 is: 2,236,124.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,042.38 : 2,685,173.13 = 1,621,433.61 : x
  2. Step 2: Convert to fraction form
    1,947,042.38/2,685,173.13 = 1,621,433.61/x
  3. Step 3: Cross multiply
    1,947,042.38x = 2,685,173.13 × 1,621,433.61
  4. Step 4: Simplify right side
    1,947,042.38x = 4,353,829,961,650.90
  5. Step 5: Solve for x
    x = 4,353,829,961,650.90/1,947,042.38
  6. Step 6: Final answer
    x = 2,236,124.91

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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.