Finding the Fourth Proportional to 307,202,836.64, 423,981,389.72 and 173,268,245.36
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Solution
The fourth proportional to 307,202,836.64, 423,981,389.72 and 173,268,245.36 is: 239,133,571.38
Step by Step Solution
- Step 1: Write the proportion equation
307,202,836.64 : 423,981,389.72 = 173,268,245.36 : x - Step 2: Convert to fraction form
307,202,836.64/423,981,389.72 = 173,268,245.36/x - Step 3: Cross multiply
307,202,836.64x = 423,981,389.72 × 173,268,245.36 - Step 4: Simplify right side
307,202,836.64x = 73,462,511,463,571,872 - Step 5: Solve for x
x = 73,462,511,463,571,872/307,202,836.64 - Step 6: Final answer
x = 239,133,571.38
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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.