Finding the Fourth Proportional to 3,728,369.66, 5,145,401.07 and 2,808,976.73
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Solution
The fourth proportional to 3,728,369.66, 5,145,401.07 and 2,808,976.73 is: 3,876,576.94
Step by Step Solution
- Step 1: Write the proportion equation
3,728,369.66 : 5,145,401.07 = 2,808,976.73 : x - Step 2: Convert to fraction form
3,728,369.66/5,145,401.07 = 2,808,976.73/x - Step 3: Cross multiply
3,728,369.66x = 5,145,401.07 × 2,808,976.73 - Step 4: Simplify right side
3,728,369.66x = 14,453,311,846,420.10 - Step 5: Solve for x
x = 14,453,311,846,420.10/3,728,369.66 - Step 6: Final answer
x = 3,876,576.94
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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.