Home / 491,521,927.08-678,273,035.88-268,459,195.80

Finding the Fourth Proportional to 491,521,927.08, 678,273,035.88 and 268,459,195.80

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Solution

The fourth proportional to 491,521,927.08, 678,273,035.88 and 268,459,195.80 is: 370,458,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,521,927.08 : 678,273,035.88 = 268,459,195.80 : x
  2. Step 2: Convert to fraction form
    491,521,927.08/678,273,035.88 = 268,459,195.80/x
  3. Step 3: Cross multiply
    491,521,927.08x = 678,273,035.88 × 268,459,195.80
  4. Step 4: Simplify right side
    491,521,927.08x = 182,088,633,745,169,344
  5. Step 5: Solve for x
    x = 182,088,633,745,169,344/491,521,927.08
  6. Step 6: Final answer
    x = 370,458,821.29

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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.