Finding the Fourth Proportional to 5,256,853.20, 7,883,436.60 and 2,731,669.20
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Solution
The fourth proportional to 5,256,853.20, 7,883,436.60 and 2,731,669.20 is: 4,096,546.00
Step by Step Solution
- Step 1: Write the proportion equation
5,256,853.20 : 7,883,436.60 = 2,731,669.20 : x - Step 2: Convert to fraction form
5,256,853.20/7,883,436.60 = 2,731,669.20/x - Step 3: Cross multiply
5,256,853.20x = 7,883,436.60 × 2,731,669.20 - Step 4: Simplify right side
5,256,853.20x = 21,534,940,950,372.72 - Step 5: Solve for x
x = 21,534,940,950,372.72/5,256,853.20 - Step 6: Final answer
x = 4,096,546.00
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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.