Finding the Fourth Proportional to 18,366,380.68, 27,553,556.79 and 5,586,553.21
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Solution
The fourth proportional to 18,366,380.68, 27,553,556.79 and 5,586,553.21 is: 8,381,042.18
Step by Step Solution
- Step 1: Write the proportion equation
18,366,380.68 : 27,553,556.79 = 5,586,553.21 : x - Step 2: Convert to fraction form
18,366,380.68/27,553,556.79 = 5,586,553.21/x - Step 3: Cross multiply
18,366,380.68x = 27,553,556.79 × 5,586,553.21 - Step 4: Simplify right side
18,366,380.68x = 153,929,411,132,091.78 - Step 5: Solve for x
x = 153,929,411,132,091.78/18,366,380.68 - Step 6: Final answer
x = 8,381,042.18
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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.