Finding the Fourth Proportional to 199,694,472.63, 275,573,239.68 and 111,589,194.15
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Solution
The fourth proportional to 199,694,472.63, 275,573,239.68 and 111,589,194.15 is: 153,990,219.86
Step by Step Solution
- Step 1: Write the proportion equation
199,694,472.63 : 275,573,239.68 = 111,589,194.15 : x - Step 2: Convert to fraction form
199,694,472.63/275,573,239.68 = 111,589,194.15/x - Step 3: Cross multiply
199,694,472.63x = 275,573,239.68 × 111,589,194.15 - Step 4: Simplify right side
199,694,472.63x = 30,750,995,745,196,008 - Step 5: Solve for x
x = 30,750,995,745,196,008/199,694,472.63 - Step 6: Final answer
x = 153,990,219.86
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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.