Home / 5,215,078.80-7,822,618.20-3,419,005.05

Finding the Fourth Proportional to 5,215,078.80, 7,822,618.20 and 3,419,005.05

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Solution

The fourth proportional to 5,215,078.80, 7,822,618.20 and 3,419,005.05 is: 5,128,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,078.80 : 7,822,618.20 = 3,419,005.05 : x
  2. Step 2: Convert to fraction form
    5,215,078.80/7,822,618.20 = 3,419,005.05/x
  3. Step 3: Cross multiply
    5,215,078.80x = 7,822,618.20 × 3,419,005.05
  4. Step 4: Simplify right side
    5,215,078.80x = 26,745,571,130,021.91
  5. Step 5: Solve for x
    x = 26,745,571,130,021.91/5,215,078.80
  6. Step 6: Final answer
    x = 5,128,507.58

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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.