Home / 3,995,428.82-5,515,191.14-2,618,861.21

Finding the Fourth Proportional to 3,995,428.82, 5,515,191.14 and 2,618,861.21

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Solution

The fourth proportional to 3,995,428.82, 5,515,191.14 and 2,618,861.21 is: 3,615,011.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995,428.82 : 5,515,191.14 = 2,618,861.21 : x
  2. Step 2: Convert to fraction form
    3,995,428.82/5,515,191.14 = 2,618,861.21/x
  3. Step 3: Cross multiply
    3,995,428.82x = 5,515,191.14 × 2,618,861.21
  4. Step 4: Simplify right side
    3,995,428.82x = 14,443,520,142,281.68
  5. Step 5: Solve for x
    x = 14,443,520,142,281.68/3,995,428.82
  6. Step 6: Final answer
    x = 3,615,011.25

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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.