Finding the Fourth Proportional to 3,879,950.84, 5,353,783.62 and 2,203,476.92
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Solution
The fourth proportional to 3,879,950.84, 5,353,783.62 and 2,203,476.92 is: 3,040,486.63
Step by Step Solution
- Step 1: Write the proportion equation
3,879,950.84 : 5,353,783.62 = 2,203,476.92 : x - Step 2: Convert to fraction form
3,879,950.84/5,353,783.62 = 2,203,476.92/x - Step 3: Cross multiply
3,879,950.84x = 5,353,783.62 × 2,203,476.92 - Step 4: Simplify right side
3,879,950.84x = 11,796,938,641,344.05 - Step 5: Solve for x
x = 11,796,938,641,344.05/3,879,950.84 - Step 6: Final answer
x = 3,040,486.63
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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.