Home / 1,268,721,008.12-1,903,173,234.60-531,049,013.66

Finding the Fourth Proportional to 1,268,721,008.12, 1,903,173,234.60 and 531,049,013.66

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Solution

The fourth proportional to 1,268,721,008.12, 1,903,173,234.60 and 531,049,013.66 is: 796,611,912.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,721,008.12 : 1,903,173,234.60 = 531,049,013.66 : x
  2. Step 2: Convert to fraction form
    1,268,721,008.12/1,903,173,234.60 = 531,049,013.66/x
  3. Step 3: Cross multiply
    1,268,721,008.12x = 1,903,173,234.60 × 531,049,013.66
  4. Step 4: Simplify right side
    1,268,721,008.12x = 1,010,678,269,058,441,728
  5. Step 5: Solve for x
    x = 1,010,678,269,058,441,728/1,268,721,008.12
  6. Step 6: Final answer
    x = 796,611,912.78

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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.