Home / 503,987,436.82-756,252,191.05-485,643,089.95

Finding the Fourth Proportional to 503,987,436.82, 756,252,191.05 and 485,643,089.95

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Solution

The fourth proportional to 503,987,436.82, 756,252,191.05 and 485,643,089.95 is: 728,725,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,987,436.82 : 756,252,191.05 = 485,643,089.95 : x
  2. Step 2: Convert to fraction form
    503,987,436.82/756,252,191.05 = 485,643,089.95/x
  3. Step 3: Cross multiply
    503,987,436.82x = 756,252,191.05 × 485,643,089.95
  4. Step 4: Simplify right side
    503,987,436.82x = 367,268,650,846,884,672
  5. Step 5: Solve for x
    x = 367,268,650,846,884,672/503,987,436.82
  6. Step 6: Final answer
    x = 728,725,805.48

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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.