Finding the Fourth Proportional to 6,821,693.64, 9,413,371.26 and 3,880,728.23
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Solution
The fourth proportional to 6,821,693.64, 9,413,371.26 and 3,880,728.23 is: 5,355,082.99
Step by Step Solution
- Step 1: Write the proportion equation
6,821,693.64 : 9,413,371.26 = 3,880,728.23 : x - Step 2: Convert to fraction form
6,821,693.64/9,413,371.26 = 3,880,728.23/x - Step 3: Cross multiply
6,821,693.64x = 9,413,371.26 × 3,880,728.23 - Step 4: Simplify right side
6,821,693.64x = 36,530,735,541,085.81 - Step 5: Solve for x
x = 36,530,735,541,085.81/6,821,693.64 - Step 6: Final answer
x = 5,355,082.99
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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.