Finding the Fourth Proportional to 80,461,163.20, 120,691,744.80 and 26,608,475.20
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Solution
The fourth proportional to 80,461,163.20, 120,691,744.80 and 26,608,475.20 is: 39,912,712.80
Step by Step Solution
- Step 1: Write the proportion equation
80,461,163.20 : 120,691,744.80 = 26,608,475.20 : x - Step 2: Convert to fraction form
80,461,163.20/120,691,744.80 = 26,608,475.20/x - Step 3: Cross multiply
80,461,163.20x = 120,691,744.80 × 26,608,475.20 - Step 4: Simplify right side
80,461,163.20x = 3,211,423,298,355,529 - Step 5: Solve for x
x = 3,211,423,298,355,529/80,461,163.20 - Step 6: Final answer
x = 39,912,712.80
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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.