Finding the Fourth Proportional to 635,318,859.70, 876,761,315.67 and 353,073,194.62
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Solution
The fourth proportional to 635,318,859.70, 876,761,315.67 and 353,073,194.62 is: 487,252,839.92
Step by Step Solution
- Step 1: Write the proportion equation
635,318,859.70 : 876,761,315.67 = 353,073,194.62 : x - Step 2: Convert to fraction form
635,318,859.70/876,761,315.67 = 353,073,194.62/x - Step 3: Cross multiply
635,318,859.70x = 876,761,315.67 × 353,073,194.62 - Step 4: Simplify right side
635,318,859.70x = 309,560,918,642,841,152 - Step 5: Solve for x
x = 309,560,918,642,841,152/635,318,859.70 - Step 6: Final answer
x = 487,252,839.92
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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.