Finding the Fourth Proportional to 299,382,861.80, 449,074,292.70 and 218,761,293.80
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Solution
The fourth proportional to 299,382,861.80, 449,074,292.70 and 218,761,293.80 is: 328,141,940.70
Step by Step Solution
- Step 1: Write the proportion equation
299,382,861.80 : 449,074,292.70 = 218,761,293.80 : x - Step 2: Convert to fraction form
299,382,861.80/449,074,292.70 = 218,761,293.80/x - Step 3: Cross multiply
299,382,861.80x = 449,074,292.70 × 218,761,293.80 - Step 4: Simplify right side
299,382,861.80x = 98,240,073,283,371,904 - Step 5: Solve for x
x = 98,240,073,283,371,904/299,382,861.80 - Step 6: Final answer
x = 328,141,940.70
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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.