Home / 3,101,286.18-4,279,147.77-1,811,877.45

Finding the Fourth Proportional to 3,101,286.18, 4,279,147.77 and 1,811,877.45

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Solution

The fourth proportional to 3,101,286.18, 4,279,147.77 and 1,811,877.45 is: 2,500,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101,286.18 : 4,279,147.77 = 1,811,877.45 : x
  2. Step 2: Convert to fraction form
    3,101,286.18/4,279,147.77 = 1,811,877.45/x
  3. Step 3: Cross multiply
    3,101,286.18x = 4,279,147.77 × 1,811,877.45
  4. Step 4: Simplify right side
    3,101,286.18x = 7,753,291,340,621.40
  5. Step 5: Solve for x
    x = 7,753,291,340,621.40/3,101,286.18
  6. Step 6: Final answer
    x = 2,500,024.47

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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.