Home / 2,136,127.92-2,947,874.88-1,218,403.68

Finding the Fourth Proportional to 2,136,127.92, 2,947,874.88 and 1,218,403.68

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Solution

The fourth proportional to 2,136,127.92, 2,947,874.88 and 1,218,403.68 is: 1,681,407.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,127.92 : 2,947,874.88 = 1,218,403.68 : x
  2. Step 2: Convert to fraction form
    2,136,127.92/2,947,874.88 = 1,218,403.68/x
  3. Step 3: Cross multiply
    2,136,127.92x = 2,947,874.88 × 1,218,403.68
  4. Step 4: Simplify right side
    2,136,127.92x = 3,591,701,601,971.56
  5. Step 5: Solve for x
    x = 3,591,701,601,971.56/2,136,127.92
  6. Step 6: Final answer
    x = 1,681,407.55

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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.