Finding the Fourth Proportional to 68,208,163.20, 102,312,244.80 and 68,208,163.20
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Solution
The fourth proportional to 68,208,163.20, 102,312,244.80 and 68,208,163.20 is: 102,312,244.80
Step by Step Solution
- Step 1: Write the proportion equation
68,208,163.20 : 102,312,244.80 = 68,208,163.20 : x - Step 2: Convert to fraction form
68,208,163.20/102,312,244.80 = 68,208,163.20/x - Step 3: Cross multiply
68,208,163.20x = 102,312,244.80 × 68,208,163.20 - Step 4: Simplify right side
68,208,163.20x = 6,978,530,290,676,751 - Step 5: Solve for x
x = 6,978,530,290,676,751/68,208,163.20 - Step 6: Final answer
x = 102,312,244.80
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1.5x scale
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.