Home / 491,805,448.99-678,692,180.96-282,957,402.85

Finding the Fourth Proportional to 491,805,448.99, 678,692,180.96 and 282,957,402.85

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Solution

The fourth proportional to 491,805,448.99, 678,692,180.96 and 282,957,402.85 is: 390,481,596.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,805,448.99 : 678,692,180.96 = 282,957,402.85 : x
  2. Step 2: Convert to fraction form
    491,805,448.99/678,692,180.96 = 282,957,402.85/x
  3. Step 3: Cross multiply
    491,805,448.99x = 678,692,180.96 × 282,957,402.85
  4. Step 4: Simplify right side
    491,805,448.99x = 192,040,976,859,043,840
  5. Step 5: Solve for x
    x = 192,040,976,859,043,840/491,805,448.99
  6. Step 6: Final answer
    x = 390,481,596.44

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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.