Finding the Fourth Proportional to 5,168,096.17, 7,131,972.81 and 2,876,798.14
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Solution
The fourth proportional to 5,168,096.17, 7,131,972.81 and 2,876,798.14 is: 3,969,981.49
Step by Step Solution
- Step 1: Write the proportion equation
5,168,096.17 : 7,131,972.81 = 2,876,798.14 : x - Step 2: Convert to fraction form
5,168,096.17/7,131,972.81 = 2,876,798.14/x - Step 3: Cross multiply
5,168,096.17x = 7,131,972.81 × 2,876,798.14 - Step 4: Simplify right side
5,168,096.17x = 20,517,246,114,338.57 - Step 5: Solve for x
x = 20,517,246,114,338.57/5,168,096.17 - Step 6: Final answer
x = 3,969,981.49
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1.5x scale
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.