Finding the Fourth Proportional to 419,668,324.20, 629,502,486.30 and 266,991,229.80
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Solution
The fourth proportional to 419,668,324.20, 629,502,486.30 and 266,991,229.80 is: 400,486,844.70
Step by Step Solution
- Step 1: Write the proportion equation
419,668,324.20 : 629,502,486.30 = 266,991,229.80 : x - Step 2: Convert to fraction form
419,668,324.20/629,502,486.30 = 266,991,229.80/x - Step 3: Cross multiply
419,668,324.20x = 629,502,486.30 × 266,991,229.80 - Step 4: Simplify right side
419,668,324.20x = 168,071,642,979,394,656 - Step 5: Solve for x
x = 168,071,642,979,394,656/419,668,324.20 - Step 6: Final answer
x = 400,486,844.70
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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.