Finding the Fourth Proportional to 133,152,163.20, 199,728,244.80 and 92,808,201.60
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Solution
The fourth proportional to 133,152,163.20, 199,728,244.80 and 92,808,201.60 is: 139,212,302.40
Step by Step Solution
- Step 1: Write the proportion equation
133,152,163.20 : 199,728,244.80 = 92,808,201.60 : x - Step 2: Convert to fraction form
133,152,163.20/199,728,244.80 = 92,808,201.60/x - Step 3: Cross multiply
133,152,163.20x = 199,728,244.80 × 92,808,201.60 - Step 4: Simplify right side
133,152,163.20x = 18,536,419,208,612,552 - Step 5: Solve for x
x = 18,536,419,208,612,552/133,152,163.20 - Step 6: Final answer
x = 139,212,302.40
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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.