Finding the Fourth Proportional to 8,178,914.16, 11,286,706.53 and 4,457,863.53
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Solution
The fourth proportional to 8,178,914.16, 11,286,706.53 and 4,457,863.53 is: 6,151,745.38
Step by Step Solution
- Step 1: Write the proportion equation
8,178,914.16 : 11,286,706.53 = 4,457,863.53 : x - Step 2: Convert to fraction form
8,178,914.16/11,286,706.53 = 4,457,863.53/x - Step 3: Cross multiply
8,178,914.16x = 11,286,706.53 × 4,457,863.53 - Step 4: Simplify right side
8,178,914.16x = 50,314,597,413,899.85 - Step 5: Solve for x
x = 50,314,597,413,899.85/8,178,914.16 - Step 6: Final answer
x = 6,151,745.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.