Finding the Fourth Proportional to 265,738,861.20, 398,608,291.80 and 122,411,629.20
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Solution
The fourth proportional to 265,738,861.20, 398,608,291.80 and 122,411,629.20 is: 183,617,443.80
Step by Step Solution
- Step 1: Write the proportion equation
265,738,861.20 : 398,608,291.80 = 122,411,629.20 : x - Step 2: Convert to fraction form
265,738,861.20/398,608,291.80 = 122,411,629.20/x - Step 3: Cross multiply
265,738,861.20x = 398,608,291.80 × 122,411,629.20 - Step 4: Simplify right side
265,738,861.20x = 48,794,290,411,867,000 - Step 5: Solve for x
x = 48,794,290,411,867,000/265,738,861.20 - Step 6: Final answer
x = 183,617,443.80
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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.