Home / 2,158,987.68-2,979,383.76-1,192,097.16

Finding the Fourth Proportional to 2,158,987.68, 2,979,383.76 and 1,192,097.16

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Solution

The fourth proportional to 2,158,987.68, 2,979,383.76 and 1,192,097.16 is: 1,645,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,987.68 : 2,979,383.76 = 1,192,097.16 : x
  2. Step 2: Convert to fraction form
    2,158,987.68/2,979,383.76 = 1,192,097.16/x
  3. Step 3: Cross multiply
    2,158,987.68x = 2,979,383.76 × 1,192,097.16
  4. Step 4: Simplify right side
    2,158,987.68x = 3,551,714,918,846.12
  5. Step 5: Solve for x
    x = 3,551,714,918,846.12/2,158,987.68
  6. Step 6: Final answer
    x = 1,645,083.46

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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.