Finding the Fourth Proportional to 4,813,147.20, 6,640,385.76 and 2,879,463.36
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Solution
The fourth proportional to 4,813,147.20, 6,640,385.76 and 2,879,463.36 is: 3,972,608.09
Step by Step Solution
- Step 1: Write the proportion equation
4,813,147.20 : 6,640,385.76 = 2,879,463.36 : x - Step 2: Convert to fraction form
4,813,147.20/6,640,385.76 = 2,879,463.36/x - Step 3: Cross multiply
4,813,147.20x = 6,640,385.76 × 2,879,463.36 - Step 4: Simplify right side
4,813,147.20x = 19,120,747,492,185.75 - Step 5: Solve for x
x = 19,120,747,492,185.75/4,813,147.20 - Step 6: Final answer
x = 3,972,608.09
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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.