Home / 2,158,203.56-2,978,391.40-1,178,194.84

Finding the Fourth Proportional to 2,158,203.56, 2,978,391.40 and 1,178,194.84

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Solution

The fourth proportional to 2,158,203.56, 2,978,391.40 and 1,178,194.84 is: 1,625,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,203.56 : 2,978,391.40 = 1,178,194.84 : x
  2. Step 2: Convert to fraction form
    2,158,203.56/2,978,391.40 = 1,178,194.84/x
  3. Step 3: Cross multiply
    2,158,203.56x = 2,978,391.40 × 1,178,194.84
  4. Step 4: Simplify right side
    2,158,203.56x = 3,509,125,378,980.38
  5. Step 5: Solve for x
    x = 3,509,125,378,980.38/2,158,203.56
  6. Step 6: Final answer
    x = 1,625,947.36

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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.