Finding the Fourth Proportional to 5,082,385.92, 7,013,805.60 and 2,790,555.68
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Solution
The fourth proportional to 5,082,385.92, 7,013,805.60 and 2,790,555.68 is: 3,851,028.90
Step by Step Solution
- Step 1: Write the proportion equation
5,082,385.92 : 7,013,805.60 = 2,790,555.68 : x - Step 2: Convert to fraction form
5,082,385.92/7,013,805.60 = 2,790,555.68/x - Step 3: Cross multiply
5,082,385.92x = 7,013,805.60 × 2,790,555.68 - Step 4: Simplify right side
5,082,385.92x = 19,572,415,055,495.81 - Step 5: Solve for x
x = 19,572,415,055,495.81/5,082,385.92 - Step 6: Final answer
x = 3,851,028.90
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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.