Home / 2,168,177.78-2,991,984.54-1,188,111

Finding the Fourth Proportional to 2,168,177.78, 2,991,984.54 and 1,188,111

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Solution

The fourth proportional to 2,168,177.78, 2,991,984.54 and 1,188,111 is: 1,639,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,177.78 : 2,991,984.54 = 1,188,111 : x
  2. Step 2: Convert to fraction form
    2,168,177.78/2,991,984.54 = 1,188,111/x
  3. Step 3: Cross multiply
    2,168,177.78x = 2,991,984.54 × 1,188,111
  4. Step 4: Simplify right side
    2,168,177.78x = 3,554,809,743,803.94
  5. Step 5: Solve for x
    x = 3,554,809,743,803.94/2,168,177.78
  6. Step 6: Final answer
    x = 1,639,537.95

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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.