Finding the Fourth Proportional to 194,922,728.31, 268,993,553.09 and 106,816,920.69
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Solution
The fourth proportional to 194,922,728.31, 268,993,553.09 and 106,816,920.69 is: 147,407,453.58
Step by Step Solution
- Step 1: Write the proportion equation
194,922,728.31 : 268,993,553.09 = 106,816,920.69 : x - Step 2: Convert to fraction form
194,922,728.31/268,993,553.09 = 106,816,920.69/x - Step 3: Cross multiply
194,922,728.31x = 268,993,553.09 × 106,816,920.69 - Step 4: Simplify right side
194,922,728.31x = 28,733,063,026,001,748 - Step 5: Solve for x
x = 28,733,063,026,001,748/194,922,728.31 - Step 6: Final answer
x = 147,407,453.58
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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.