Finding the Fourth Proportional to 82,256,729.55, 122,649,697.42 and 79,996,776.70
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Solution
The fourth proportional to 82,256,729.55, 122,649,697.42 and 79,996,776.70 is: 119,279,972.72
Step by Step Solution
- Step 1: Write the proportion equation
82,256,729.55 : 122,649,697.42 = 79,996,776.70 : x - Step 2: Convert to fraction form
82,256,729.55/122,649,697.42 = 79,996,776.70/x - Step 3: Cross multiply
82,256,729.55x = 122,649,697.42 × 79,996,776.70 - Step 4: Simplify right side
82,256,729.55x = 9,811,580,456,830,306 - Step 5: Solve for x
x = 9,811,580,456,830,306/82,256,729.55 - Step 6: Final answer
x = 119,279,972.72
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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.