Home / 3,938,799.20-5,435,557.76-2,489,138.88

Finding the Fourth Proportional to 3,938,799.20, 5,435,557.76 and 2,489,138.88

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Solution

The fourth proportional to 3,938,799.20, 5,435,557.76 and 2,489,138.88 is: 3,435,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,799.20 : 5,435,557.76 = 2,489,138.88 : x
  2. Step 2: Convert to fraction form
    3,938,799.20/5,435,557.76 = 2,489,138.88/x
  3. Step 3: Cross multiply
    3,938,799.20x = 5,435,557.76 × 2,489,138.88
  4. Step 4: Simplify right side
    3,938,799.20x = 13,529,858,154,901.71
  5. Step 5: Solve for x
    x = 13,529,858,154,901.71/3,938,799.20
  6. Step 6: Final answer
    x = 3,435,021.05

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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.