Home / 2,151,288.57-2,968,724.47-1,221,170.00

Finding the Fourth Proportional to 2,151,288.57, 2,968,724.47 and 1,221,170.00

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Solution

The fourth proportional to 2,151,288.57, 2,968,724.47 and 1,221,170.00 is: 1,685,184.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151,288.57 : 2,968,724.47 = 1,221,170.00 : x
  2. Step 2: Convert to fraction form
    2,151,288.57/2,968,724.47 = 1,221,170.00/x
  3. Step 3: Cross multiply
    2,151,288.57x = 2,968,724.47 × 1,221,170.00
  4. Step 4: Simplify right side
    2,151,288.57x = 3,625,317,253,772.58
  5. Step 5: Solve for x
    x = 3,625,317,253,772.58/2,151,288.57
  6. Step 6: Final answer
    x = 1,685,184.08

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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.