Finding the Fourth Proportional to 18,189,610.20, 27,284,415.30 and 15,744,981.60
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Solution
The fourth proportional to 18,189,610.20, 27,284,415.30 and 15,744,981.60 is: 23,617,472.40
Step by Step Solution
- Step 1: Write the proportion equation
18,189,610.20 : 27,284,415.30 = 15,744,981.60 : x - Step 2: Convert to fraction form
18,189,610.20/27,284,415.30 = 15,744,981.60/x - Step 3: Cross multiply
18,189,610.20x = 27,284,415.30 × 15,744,981.60 - Step 4: Simplify right side
18,189,610.20x = 429,592,616,865,258.50 - Step 5: Solve for x
x = 429,592,616,865,258.50/18,189,610.20 - Step 6: Final answer
x = 23,617,472.40
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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.