Finding the Fourth Proportional to 5,381,857.20, 7,428,762.36 and 3,207,082.44
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Solution
The fourth proportional to 5,381,857.20, 7,428,762.36 and 3,207,082.44 is: 4,426,846.06
Step by Step Solution
- Step 1: Write the proportion equation
5,381,857.20 : 7,428,762.36 = 3,207,082.44 : x - Step 2: Convert to fraction form
5,381,857.20/7,428,762.36 = 3,207,082.44/x - Step 3: Cross multiply
5,381,857.20x = 7,428,762.36 × 3,207,082.44 - Step 4: Simplify right side
5,381,857.20x = 23,824,653,315,688.96 - Step 5: Solve for x
x = 23,824,653,315,688.96/5,381,857.20 - Step 6: Final answer
x = 4,426,846.06
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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.