Finding the Fourth Proportional to 13,612,585.08, 18,784,211.09 and 7,811,242.05
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Solution
The fourth proportional to 13,612,585.08, 18,784,211.09 and 7,811,242.05 is: 10,778,850.50
Step by Step Solution
- Step 1: Write the proportion equation
13,612,585.08 : 18,784,211.09 = 7,811,242.05 : x - Step 2: Convert to fraction form
13,612,585.08/18,784,211.09 = 7,811,242.05/x - Step 3: Cross multiply
13,612,585.08x = 18,784,211.09 × 7,811,242.05 - Step 4: Simplify right side
13,612,585.08x = 146,728,019,503,228.12 - Step 5: Solve for x
x = 146,728,019,503,228.12/13,612,585.08 - Step 6: Final answer
x = 10,778,850.50
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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.