Finding the Fourth Proportional to 81,964,122.60, 122,946,183.90 and 41,149,453.80
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Solution
The fourth proportional to 81,964,122.60, 122,946,183.90 and 41,149,453.80 is: 61,724,180.70
Step by Step Solution
- Step 1: Write the proportion equation
81,964,122.60 : 122,946,183.90 = 41,149,453.80 : x - Step 2: Convert to fraction form
81,964,122.60/122,946,183.90 = 41,149,453.80/x - Step 3: Cross multiply
81,964,122.60x = 122,946,183.90 × 41,149,453.80 - Step 4: Simplify right side
81,964,122.60x = 5,059,168,314,279,354 - Step 5: Solve for x
x = 5,059,168,314,279,354/81,964,122.60 - Step 6: Final answer
x = 61,724,180.70
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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.