Home / 2,151,289.57-2,968,725.85-1,221,171

Finding the Fourth Proportional to 2,151,289.57, 2,968,725.85 and 1,221,171

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Solution

The fourth proportional to 2,151,289.57, 2,968,725.85 and 1,221,171 is: 1,685,185.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151,289.57 : 2,968,725.85 = 1,221,171 : x
  2. Step 2: Convert to fraction form
    2,151,289.57/2,968,725.85 = 1,221,171/x
  3. Step 3: Cross multiply
    2,151,289.57x = 2,968,725.85 × 1,221,171
  4. Step 4: Simplify right side
    2,151,289.57x = 3,625,321,914,970.35
  5. Step 5: Solve for x
    x = 3,625,321,914,970.35/2,151,289.57
  6. Step 6: Final answer
    x = 1,685,185.47

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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.