Finding the Fourth Proportional to 3,513,107.21, 4,846,217.82 and 2,136,871.85
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Solution
The fourth proportional to 3,513,107.21, 4,846,217.82 and 2,136,871.85 is: 2,947,745.63
Step by Step Solution
- Step 1: Write the proportion equation
3,513,107.21 : 4,846,217.82 = 2,136,871.85 : x - Step 2: Convert to fraction form
3,513,107.21/4,846,217.82 = 2,136,871.85/x - Step 3: Cross multiply
3,513,107.21x = 4,846,217.82 × 2,136,871.85 - Step 4: Simplify right side
3,513,107.21x = 10,355,746,414,295.28 - Step 5: Solve for x
x = 10,355,746,414,295.28/3,513,107.21 - Step 6: Final answer
x = 2,947,745.63
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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.