Finding the Fourth Proportional to 289,940,879.75, 400,118,479.31 and 159,560,687.75
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Solution
The fourth proportional to 289,940,879.75, 400,118,479.31 and 159,560,687.75 is: 220,193,785.00
Step by Step Solution
- Step 1: Write the proportion equation
289,940,879.75 : 400,118,479.31 = 159,560,687.75 : x - Step 2: Convert to fraction form
289,940,879.75/400,118,479.31 = 159,560,687.75/x - Step 3: Cross multiply
289,940,879.75x = 400,118,479.31 × 159,560,687.75 - Step 4: Simplify right side
289,940,879.75x = 63,843,179,738,586,056 - Step 5: Solve for x
x = 63,843,179,738,586,056/289,940,879.75 - Step 6: Final answer
x = 220,193,785.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.