Finding the Fourth Proportional to 168,048,197.80, 252,072,296.70 and 40,397,381.80
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Solution
The fourth proportional to 168,048,197.80, 252,072,296.70 and 40,397,381.80 is: 60,596,072.70
Step by Step Solution
- Step 1: Write the proportion equation
168,048,197.80 : 252,072,296.70 = 40,397,381.80 : x - Step 2: Convert to fraction form
168,048,197.80/252,072,296.70 = 40,397,381.80/x - Step 3: Cross multiply
168,048,197.80x = 252,072,296.70 × 40,397,381.80 - Step 4: Simplify right side
168,048,197.80x = 10,183,060,810,992,778 - Step 5: Solve for x
x = 10,183,060,810,992,778/168,048,197.80 - Step 6: Final answer
x = 60,596,072.70
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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.