Home / 327,009,805.11-490,110,797.88-280,625,634.63

Finding the Fourth Proportional to 327,009,805.11, 490,110,797.88 and 280,625,634.63

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Solution

The fourth proportional to 327,009,805.11, 490,110,797.88 and 280,625,634.63 is: 420,591,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,009,805.11 : 490,110,797.88 = 280,625,634.63 : x
  2. Step 2: Convert to fraction form
    327,009,805.11/490,110,797.88 = 280,625,634.63/x
  3. Step 3: Cross multiply
    327,009,805.11x = 490,110,797.88 × 280,625,634.63
  4. Step 4: Simplify right side
    327,009,805.11x = 137,537,653,694,090,656
  5. Step 5: Solve for x
    x = 137,537,653,694,090,656/327,009,805.11
  6. Step 6: Final answer
    x = 420,591,834.08

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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.