Finding the Fourth Proportional to 3,866,211.92, 5,335,224.90 and 2,147,442.68
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Solution
The fourth proportional to 3,866,211.92, 5,335,224.90 and 2,147,442.68 is: 2,963,388.94
Step by Step Solution
- Step 1: Write the proportion equation
3,866,211.92 : 5,335,224.90 = 2,147,442.68 : x - Step 2: Convert to fraction form
3,866,211.92/5,335,224.90 = 2,147,442.68/x - Step 3: Cross multiply
3,866,211.92x = 5,335,224.90 × 2,147,442.68 - Step 4: Simplify right side
3,866,211.92x = 11,457,089,657,658.73 - Step 5: Solve for x
x = 11,457,089,657,658.73/3,866,211.92 - Step 6: Final answer
x = 2,963,388.94
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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.