Finding the Fourth Proportional to 5,158,916.24, 7,738,407.33 and 1,515,631.21
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Solution
The fourth proportional to 5,158,916.24, 7,738,407.33 and 1,515,631.21 is: 2,273,456.49
Step by Step Solution
- Step 1: Write the proportion equation
5,158,916.24 : 7,738,407.33 = 1,515,631.21 : x - Step 2: Convert to fraction form
5,158,916.24/7,738,407.33 = 1,515,631.21/x - Step 3: Cross multiply
5,158,916.24x = 7,738,407.33 × 1,515,631.21 - Step 4: Simplify right side
5,158,916.24x = 11,728,571,618,770.58 - Step 5: Solve for x
x = 11,728,571,618,770.58/5,158,916.24 - Step 6: Final answer
x = 2,273,456.49
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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.