Finding the Fourth Proportional to 7,025,396.70, 10,530,916.68 and 3,986,342.58
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Solution
The fourth proportional to 7,025,396.70, 10,530,916.68 and 3,986,342.58 is: 5,975,440.73
Step by Step Solution
- Step 1: Write the proportion equation
7,025,396.70 : 10,530,916.68 = 3,986,342.58 : x - Step 2: Convert to fraction form
7,025,396.70/10,530,916.68 = 3,986,342.58/x - Step 3: Cross multiply
7,025,396.70x = 10,530,916.68 × 3,986,342.58 - Step 4: Simplify right side
7,025,396.70x = 41,979,841,567,916.23 - Step 5: Solve for x
x = 41,979,841,567,916.23/7,025,396.70 - Step 6: Final answer
x = 5,975,440.73
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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.