Finding the Fourth Proportional to 18,861,493.60, 28,292,240.40 and 6,082,415.20
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Solution
The fourth proportional to 18,861,493.60, 28,292,240.40 and 6,082,415.20 is: 9,123,622.80
Step by Step Solution
- Step 1: Write the proportion equation
18,861,493.60 : 28,292,240.40 = 6,082,415.20 : x - Step 2: Convert to fraction form
18,861,493.60/28,292,240.40 = 6,082,415.20/x - Step 3: Cross multiply
18,861,493.60x = 28,292,240.40 × 6,082,415.20 - Step 4: Simplify right side
18,861,493.60x = 172,085,153,051,014.06 - Step 5: Solve for x
x = 172,085,153,051,014.06/18,861,493.60 - Step 6: Final answer
x = 9,123,622.80
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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.