Finding the Fourth Proportional to 419,904,795.40, 629,857,193.10 and 282,848,129.80
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Solution
The fourth proportional to 419,904,795.40, 629,857,193.10 and 282,848,129.80 is: 424,272,194.70
Step by Step Solution
- Step 1: Write the proportion equation
419,904,795.40 : 629,857,193.10 = 282,848,129.80 : x - Step 2: Convert to fraction form
419,904,795.40/629,857,193.10 = 282,848,129.80/x - Step 3: Cross multiply
419,904,795.40x = 629,857,193.10 × 282,848,129.80 - Step 4: Simplify right side
419,904,795.40x = 178,153,929,109,412,480 - Step 5: Solve for x
x = 178,153,929,109,412,480/419,904,795.40 - Step 6: Final answer
x = 424,272,194.70
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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.