Finding the Fourth Proportional to 825,947,989.94, 1,238,469,146.79 and 327,453,508.68
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Solution
The fourth proportional to 825,947,989.94, 1,238,469,146.79 and 327,453,508.68 is: 491,000,731.83
Step by Step Solution
- Step 1: Write the proportion equation
825,947,989.94 : 1,238,469,146.79 = 327,453,508.68 : x - Step 2: Convert to fraction form
825,947,989.94/1,238,469,146.79 = 327,453,508.68/x - Step 3: Cross multiply
825,947,989.94x = 1,238,469,146.79 × 327,453,508.68 - Step 4: Simplify right side
825,947,989.94x = 405,541,067,508,311,424 - Step 5: Solve for x
x = 405,541,067,508,311,424/825,947,989.94 - Step 6: Final answer
x = 491,000,731.83
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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.