Finding the Fourth Proportional to 3,612,815.63, 4,985,754.05 and 1,981,125.68
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Solution
The fourth proportional to 3,612,815.63, 4,985,754.05 and 1,981,125.68 is: 2,733,990.99
Step by Step Solution
- Step 1: Write the proportion equation
3,612,815.63 : 4,985,754.05 = 1,981,125.68 : x - Step 2: Convert to fraction form
3,612,815.63/4,985,754.05 = 1,981,125.68/x - Step 3: Cross multiply
3,612,815.63x = 4,985,754.05 × 1,981,125.68 - Step 4: Simplify right side
3,612,815.63x = 9,877,405,362,643.05 - Step 5: Solve for x
x = 9,877,405,362,643.05/3,612,815.63 - Step 6: Final answer
x = 2,733,990.99
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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.