Home / 7,978,790.59-11,969,867.27-2,587,020.58

Finding the Fourth Proportional to 7,978,790.59, 11,969,867.27 and 2,587,020.58

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Solution

The fourth proportional to 7,978,790.59, 11,969,867.27 and 2,587,020.58 is: 3,881,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,790.59 : 11,969,867.27 = 2,587,020.58 : x
  2. Step 2: Convert to fraction form
    7,978,790.59/11,969,867.27 = 2,587,020.58/x
  3. Step 3: Cross multiply
    7,978,790.59x = 11,969,867.27 × 2,587,020.58
  4. Step 4: Simplify right side
    7,978,790.59x = 30,966,292,988,788.30
  5. Step 5: Solve for x
    x = 30,966,292,988,788.30/7,978,790.59
  6. Step 6: Final answer
    x = 3,881,076.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.