Finding the Fourth Proportional to 18,363,777.80, 27,545,666.70 and 8,286,081.80
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Solution
The fourth proportional to 18,363,777.80, 27,545,666.70 and 8,286,081.80 is: 12,429,122.70
Step by Step Solution
- Step 1: Write the proportion equation
18,363,777.80 : 27,545,666.70 = 8,286,081.80 : x - Step 2: Convert to fraction form
18,363,777.80/27,545,666.70 = 8,286,081.80/x - Step 3: Cross multiply
18,363,777.80x = 27,545,666.70 × 8,286,081.80 - Step 4: Simplify right side
18,363,777.80x = 228,245,647,511,736.06 - Step 5: Solve for x
x = 228,245,647,511,736.06/18,363,777.80 - Step 6: Final answer
x = 12,429,122.70
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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.