Finding the Fourth Proportional to 5,739,824.96, 7,921,317.40 and 3,161,505.05
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Solution
The fourth proportional to 5,739,824.96, 7,921,317.40 and 3,161,505.05 is: 4,363,074.68
Step by Step Solution
- Step 1: Write the proportion equation
5,739,824.96 : 7,921,317.40 = 3,161,505.05 : x - Step 2: Convert to fraction form
5,739,824.96/7,921,317.40 = 3,161,505.05/x - Step 3: Cross multiply
5,739,824.96x = 7,921,317.40 × 3,161,505.05 - Step 4: Simplify right side
5,739,824.96x = 25,043,284,915,242.52 - Step 5: Solve for x
x = 25,043,284,915,242.52/5,739,824.96 - Step 6: Final answer
x = 4,363,074.68
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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.