Home / 2,158,676.44-2,978,914.10-1,191,789.16

Finding the Fourth Proportional to 2,158,676.44, 2,978,914.10 and 1,191,789.16

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Solution

The fourth proportional to 2,158,676.44, 2,978,914.10 and 1,191,789.16 is: 1,644,636.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,676.44 : 2,978,914.10 = 1,191,789.16 : x
  2. Step 2: Convert to fraction form
    2,158,676.44/2,978,914.10 = 1,191,789.16/x
  3. Step 3: Cross multiply
    2,158,676.44x = 2,978,914.10 × 1,191,789.16
  4. Step 4: Simplify right side
    2,158,676.44x = 3,550,237,532,951.16
  5. Step 5: Solve for x
    x = 3,550,237,532,951.16/2,158,676.44
  6. Step 6: Final answer
    x = 1,644,636.25

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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.