Finding the Fourth Proportional to 12,191,236.80, 18,286,818.75 and 3,093,316.80
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Solution
The fourth proportional to 12,191,236.80, 18,286,818.75 and 3,093,316.80 is: 4,639,965.95
Step by Step Solution
- Step 1: Write the proportion equation
12,191,236.80 : 18,286,818.75 = 3,093,316.80 : x - Step 2: Convert to fraction form
12,191,236.80/18,286,818.75 = 3,093,316.80/x - Step 3: Cross multiply
12,191,236.80x = 18,286,818.75 × 3,093,316.80 - Step 4: Simplify right side
12,191,236.80x = 56,566,923,657,930 - Step 5: Solve for x
x = 56,566,923,657,930/12,191,236.80 - Step 6: Final answer
x = 4,639,965.95
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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.