Home / 2,168,173.80-2,991,979.02-1,188,107

Finding the Fourth Proportional to 2,168,173.80, 2,991,979.02 and 1,188,107

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Solution

The fourth proportional to 2,168,173.80, 2,991,979.02 and 1,188,107 is: 1,639,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,173.80 : 2,991,979.02 = 1,188,107 : x
  2. Step 2: Convert to fraction form
    2,168,173.80/2,991,979.02 = 1,188,107/x
  3. Step 3: Cross multiply
    2,168,173.80x = 2,991,979.02 × 1,188,107
  4. Step 4: Simplify right side
    2,168,173.80x = 3,554,791,217,515.14
  5. Step 5: Solve for x
    x = 3,554,791,217,515.14/2,168,173.80
  6. Step 6: Final answer
    x = 1,639,532.41

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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.