Finding the Fourth Proportional to 12,229,945.12, 18,347,124.12 and 5,037,553.36
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Solution
The fourth proportional to 12,229,945.12, 18,347,124.12 and 5,037,553.36 is: 7,557,238.88
Step by Step Solution
- Step 1: Write the proportion equation
12,229,945.12 : 18,347,124.12 = 5,037,553.36 : x - Step 2: Convert to fraction form
12,229,945.12/18,347,124.12 = 5,037,553.36/x - Step 3: Cross multiply
12,229,945.12x = 18,347,124.12 × 5,037,553.36 - Step 4: Simplify right side
12,229,945.12x = 92,424,616,757,043.05 - Step 5: Solve for x
x = 92,424,616,757,043.05/12,229,945.12 - Step 6: Final answer
x = 7,557,238.88
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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.