Finding the Fourth Proportional to 3,825,916.05, 5,279,699.93 and 2,107,196.49
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Solution
The fourth proportional to 3,825,916.05, 5,279,699.93 and 2,107,196.49 is: 2,907,895.78
Step by Step Solution
- Step 1: Write the proportion equation
3,825,916.05 : 5,279,699.93 = 2,107,196.49 : x - Step 2: Convert to fraction form
3,825,916.05/5,279,699.93 = 2,107,196.49/x - Step 3: Cross multiply
3,825,916.05x = 5,279,699.93 × 2,107,196.49 - Step 4: Simplify right side
3,825,916.05x = 11,125,365,150,213.26 - Step 5: Solve for x
x = 11,125,365,150,213.26/3,825,916.05 - Step 6: Final answer
x = 2,907,895.78
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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.