Finding the Fourth Proportional to 68,163,053.70, 102,244,580.55 and 39,394,380.90
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Solution
The fourth proportional to 68,163,053.70, 102,244,580.55 and 39,394,380.90 is: 59,091,571.35
Step by Step Solution
- Step 1: Write the proportion equation
68,163,053.70 : 102,244,580.55 = 39,394,380.90 : x - Step 2: Convert to fraction form
68,163,053.70/102,244,580.55 = 39,394,380.90/x - Step 3: Cross multiply
68,163,053.70x = 102,244,580.55 × 39,394,380.90 - Step 4: Simplify right side
68,163,053.70x = 4,027,861,951,147,431 - Step 5: Solve for x
x = 4,027,861,951,147,431/68,163,053.70 - Step 6: Final answer
x = 59,091,571.35
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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.