Finding the Fourth Proportional to 82,728,151.20, 124,092,226.80 and 22,143,877.20
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Solution
The fourth proportional to 82,728,151.20, 124,092,226.80 and 22,143,877.20 is: 33,215,815.80
Step by Step Solution
- Step 1: Write the proportion equation
82,728,151.20 : 124,092,226.80 = 22,143,877.20 : x - Step 2: Convert to fraction form
82,728,151.20/124,092,226.80 = 22,143,877.20/x - Step 3: Cross multiply
82,728,151.20x = 124,092,226.80 × 22,143,877.20 - Step 4: Simplify right side
82,728,151.20x = 2,747,883,031,733,749 - Step 5: Solve for x
x = 2,747,883,031,733,749/82,728,151.20 - Step 6: Final answer
x = 33,215,815.80
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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.