Finding the Fourth Proportional to 82,256,733.48, 122,649,703.19 and 79,996,780.62
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Solution
The fourth proportional to 82,256,733.48, 122,649,703.19 and 79,996,780.62 is: 119,279,978.47
Step by Step Solution
- Step 1: Write the proportion equation
82,256,733.48 : 122,649,703.19 = 79,996,780.62 : x - Step 2: Convert to fraction form
82,256,733.48/122,649,703.19 = 79,996,780.62/x - Step 3: Cross multiply
82,256,733.48x = 122,649,703.19 × 79,996,780.62 - Step 4: Simplify right side
82,256,733.48x = 9,811,581,398,798,562 - Step 5: Solve for x
x = 9,811,581,398,798,562/82,256,733.48 - Step 6: Final answer
x = 119,279,978.47
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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.