Finding the Fourth Proportional to 82,256,786.35, 122,649,781.97 and 79,996,833.50
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Solution
The fourth proportional to 82,256,786.35, 122,649,781.97 and 79,996,833.50 is: 119,280,057.27
Step by Step Solution
- Step 1: Write the proportion equation
82,256,786.35 : 122,649,781.97 = 79,996,833.50 : x - Step 2: Convert to fraction form
82,256,786.35/122,649,781.97 = 79,996,833.50/x - Step 3: Cross multiply
82,256,786.35x = 122,649,781.97 × 79,996,833.50 - Step 4: Simplify right side
82,256,786.35x = 9,811,594,186,652,136 - Step 5: Solve for x
x = 9,811,594,186,652,136/82,256,786.35 - Step 6: Final answer
x = 119,280,057.27
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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.