Finding the Fourth Proportional to 276,798,287.40, 414,913,995.90 and 161,723,596.20
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Solution
The fourth proportional to 276,798,287.40, 414,913,995.90 and 161,723,596.20 is: 242,419,792.99
Step by Step Solution
- Step 1: Write the proportion equation
276,798,287.40 : 414,913,995.90 = 161,723,596.20 : x - Step 2: Convert to fraction form
276,798,287.40/414,913,995.90 = 161,723,596.20/x - Step 3: Cross multiply
276,798,287.40x = 414,913,995.90 × 161,723,596.20 - Step 4: Simplify right side
276,798,287.40x = 67,101,383,530,660,048 - Step 5: Solve for x
x = 67,101,383,530,660,048/276,798,287.40 - Step 6: Final answer
x = 242,419,792.99
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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.