Home / 2,168,172.80-2,991,977.64-1,188,106

Finding the Fourth Proportional to 2,168,172.80, 2,991,977.64 and 1,188,106

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Solution

The fourth proportional to 2,168,172.80, 2,991,977.64 and 1,188,106 is: 1,639,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168,172.80 : 2,991,977.64 = 1,188,106 : x
  2. Step 2: Convert to fraction form
    2,168,172.80/2,991,977.64 = 1,188,106/x
  3. Step 3: Cross multiply
    2,168,172.80x = 2,991,977.64 × 1,188,106
  4. Step 4: Simplify right side
    2,168,172.80x = 3,554,786,585,949.84
  5. Step 5: Solve for x
    x = 3,554,786,585,949.84/2,168,172.80
  6. Step 6: Final answer
    x = 1,639,531.03

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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.