Finding the Fourth Proportional to 19,642,612.82, 27,107,452.05 and 10,821,596.18
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Solution
The fourth proportional to 19,642,612.82, 27,107,452.05 and 10,821,596.18 is: 14,934,158.82
Step by Step Solution
- Step 1: Write the proportion equation
19,642,612.82 : 27,107,452.05 = 10,821,596.18 : x - Step 2: Convert to fraction form
19,642,612.82/27,107,452.05 = 10,821,596.18/x - Step 3: Cross multiply
19,642,612.82x = 27,107,452.05 × 10,821,596.18 - Step 4: Simplify right side
19,642,612.82x = 293,345,899,553,813.19 - Step 5: Solve for x
x = 293,345,899,553,813.19/19,642,612.82 - Step 6: Final answer
x = 14,934,158.82
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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.