Home / 1,913,210.92-2,640,131.41-1,188,043.06

Finding the Fourth Proportional to 1,913,210.92, 2,640,131.41 and 1,188,043.06

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Solution

The fourth proportional to 1,913,210.92, 2,640,131.41 and 1,188,043.06 is: 1,639,437.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,210.92 : 2,640,131.41 = 1,188,043.06 : x
  2. Step 2: Convert to fraction form
    1,913,210.92/2,640,131.41 = 1,188,043.06/x
  3. Step 3: Cross multiply
    1,913,210.92x = 2,640,131.41 × 1,188,043.06
  4. Step 4: Simplify right side
    1,913,210.92x = 3,136,589,799,138.52
  5. Step 5: Solve for x
    x = 3,136,589,799,138.52/1,913,210.92
  6. Step 6: Final answer
    x = 1,639,437.54

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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.