Finding the Fourth Proportional to 18,467,129.70, 27,700,694.55 and 14,215,601.70
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Solution
The fourth proportional to 18,467,129.70, 27,700,694.55 and 14,215,601.70 is: 21,323,402.55
Step by Step Solution
- Step 1: Write the proportion equation
18,467,129.70 : 27,700,694.55 = 14,215,601.70 : x - Step 2: Convert to fraction form
18,467,129.70/27,700,694.55 = 14,215,601.70/x - Step 3: Cross multiply
18,467,129.70x = 27,700,694.55 × 14,215,601.70 - Step 4: Simplify right side
18,467,129.70x = 393,782,040,536,160.75 - Step 5: Solve for x
x = 393,782,040,536,160.75/18,467,129.70 - Step 6: Final answer
x = 21,323,402.55
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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.