Finding the Fourth Proportional to 5,172,463.23, 7,138,220.70 and 2,880,623.92
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Solution
The fourth proportional to 5,172,463.23, 7,138,220.70 and 2,880,623.92 is: 3,975,384.33
Step by Step Solution
- Step 1: Write the proportion equation
5,172,463.23 : 7,138,220.70 = 2,880,623.92 : x - Step 2: Convert to fraction form
5,172,463.23/7,138,220.70 = 2,880,623.92/x - Step 3: Cross multiply
5,172,463.23x = 7,138,220.70 × 2,880,623.92 - Step 4: Simplify right side
5,172,463.23x = 20,562,529,305,368.11 - Step 5: Solve for x
x = 20,562,529,305,368.11/5,172,463.23 - Step 6: Final answer
x = 3,975,384.33
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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.