Finding the Fourth Proportional to 18,471,431.60, 27,707,622.60 and 8,753,764.40
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Solution
The fourth proportional to 18,471,431.60, 27,707,622.60 and 8,753,764.40 is: 13,130,871.80
Step by Step Solution
- Step 1: Write the proportion equation
18,471,431.60 : 27,707,622.60 = 8,753,764.40 : x - Step 2: Convert to fraction form
18,471,431.60/27,707,622.60 = 8,753,764.40/x - Step 3: Cross multiply
18,471,431.60x = 27,707,622.60 × 8,753,764.40 - Step 4: Simplify right side
18,471,431.60x = 242,546,000,324,515.47 - Step 5: Solve for x
x = 242,546,000,324,515.47/18,471,431.60 - Step 6: Final answer
x = 13,130,871.80
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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.