Finding the Fourth Proportional to 4,247,960.20, 6,361,442.70 and 2,820,286.60
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Solution
The fourth proportional to 4,247,960.20, 6,361,442.70 and 2,820,286.60 is: 4,223,460.38
Step by Step Solution
- Step 1: Write the proportion equation
4,247,960.20 : 6,361,442.70 = 2,820,286.60 : x - Step 2: Convert to fraction form
4,247,960.20/6,361,442.70 = 2,820,286.60/x - Step 3: Cross multiply
4,247,960.20x = 6,361,442.70 × 2,820,286.60 - Step 4: Simplify right side
4,247,960.20x = 17,941,091,603,477.82 - Step 5: Solve for x
x = 17,941,091,603,477.82/4,247,960.20 - Step 6: Final answer
x = 4,223,460.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.