Finding the Fourth Proportional to 208,874,129.85, 313,321,601.70 and 79,491,767.53
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Solution
The fourth proportional to 208,874,129.85, 313,321,601.70 and 79,491,767.53 is: 119,241,611.89
Step by Step Solution
- Step 1: Write the proportion equation
208,874,129.85 : 313,321,601.70 = 79,491,767.53 : x - Step 2: Convert to fraction form
208,874,129.85/313,321,601.70 = 79,491,767.53/x - Step 3: Cross multiply
208,874,129.85x = 313,321,601.70 × 79,491,767.53 - Step 4: Simplify right side
208,874,129.85x = 24,906,487,924,463,652 - Step 5: Solve for x
x = 24,906,487,924,463,652/208,874,129.85 - Step 6: Final answer
x = 119,241,611.89
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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.