Finding the Fourth Proportional to 82,256,741.96, 122,649,715.82 and 79,996,789.12
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Solution
The fourth proportional to 82,256,741.96, 122,649,715.82 and 79,996,789.12 is: 119,279,991.14
Step by Step Solution
- Step 1: Write the proportion equation
82,256,741.96 : 122,649,715.82 = 79,996,789.12 : x - Step 2: Convert to fraction form
82,256,741.96/122,649,715.82 = 79,996,789.12/x - Step 3: Cross multiply
82,256,741.96x = 122,649,715.82 × 79,996,789.12 - Step 4: Simplify right side
82,256,741.96x = 9,811,583,452,080,468 - Step 5: Solve for x
x = 9,811,583,452,080,468/82,256,741.96 - Step 6: Final answer
x = 119,279,991.14
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.