Finding the Fourth Proportional to 5,338,152.09, 7,366,653.78 and 2,890,765.80
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Solution
The fourth proportional to 5,338,152.09, 7,366,653.78 and 2,890,765.80 is: 3,989,258.91
Step by Step Solution
- Step 1: Write the proportion equation
5,338,152.09 : 7,366,653.78 = 2,890,765.80 : x - Step 2: Convert to fraction form
5,338,152.09/7,366,653.78 = 2,890,765.80/x - Step 3: Cross multiply
5,338,152.09x = 7,366,653.78 × 2,890,765.80 - Step 4: Simplify right side
5,338,152.09x = 21,295,270,807,664.72 - Step 5: Solve for x
x = 21,295,270,807,664.72/5,338,152.09 - Step 6: Final answer
x = 3,989,258.91
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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.