Finding the Fourth Proportional to 212,493,136.68, 318,512,645.82 and 151,724,629.80
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Solution
The fourth proportional to 212,493,136.68, 318,512,645.82 and 151,724,629.80 is: 227,424,819.59
Step by Step Solution
- Step 1: Write the proportion equation
212,493,136.68 : 318,512,645.82 = 151,724,629.80 : x - Step 2: Convert to fraction form
212,493,136.68/318,512,645.82 = 151,724,629.80/x - Step 3: Cross multiply
212,493,136.68x = 318,512,645.82 × 151,724,629.80 - Step 4: Simplify right side
212,493,136.68x = 48,326,213,273,658,024 - Step 5: Solve for x
x = 48,326,213,273,658,024/212,493,136.68 - Step 6: Final answer
x = 227,424,819.59
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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.