Finding the Fourth Proportional to 82,728,137.70, 124,092,206.55 and 22,143,863.70
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Solution
The fourth proportional to 82,728,137.70, 124,092,206.55 and 22,143,863.70 is: 33,215,795.55
Step by Step Solution
- Step 1: Write the proportion equation
82,728,137.70 : 124,092,206.55 = 22,143,863.70 : x - Step 2: Convert to fraction form
82,728,137.70/124,092,206.55 = 22,143,863.70/x - Step 3: Cross multiply
82,728,137.70x = 124,092,206.55 × 22,143,863.70 - Step 4: Simplify right side
82,728,137.70x = 2,747,880,908,075,447 - Step 5: Solve for x
x = 2,747,880,908,075,447/82,728,137.70 - Step 6: Final answer
x = 33,215,795.55
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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.