Home / 611,964,899.82-844,647,868.26-388,903,086.90

Finding the Fourth Proportional to 611,964,899.82, 844,647,868.26 and 388,903,086.90

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Solution

The fourth proportional to 611,964,899.82, 844,647,868.26 and 388,903,086.90 is: 536,772,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,964,899.82 : 844,647,868.26 = 388,903,086.90 : x
  2. Step 2: Convert to fraction form
    611,964,899.82/844,647,868.26 = 388,903,086.90/x
  3. Step 3: Cross multiply
    611,964,899.82x = 844,647,868.26 × 388,903,086.90
  4. Step 4: Simplify right side
    611,964,899.82x = 328,486,163,309,818,496
  5. Step 5: Solve for x
    x = 328,486,163,309,818,496/611,964,899.82
  6. Step 6: Final answer
    x = 536,772,882.57

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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.