Finding the Fourth Proportional to 13,189,528.08, 18,201,349.17 and 7,388,517.42
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Solution
The fourth proportional to 13,189,528.08, 18,201,349.17 and 7,388,517.42 is: 10,196,042.24
Step by Step Solution
- Step 1: Write the proportion equation
13,189,528.08 : 18,201,349.17 = 7,388,517.42 : x - Step 2: Convert to fraction form
13,189,528.08/18,201,349.17 = 7,388,517.42/x - Step 3: Cross multiply
13,189,528.08x = 18,201,349.17 × 7,388,517.42 - Step 4: Simplify right side
13,189,528.08x = 134,480,985,410,047.55 - Step 5: Solve for x
x = 134,480,985,410,047.55/13,189,528.08 - Step 6: Final answer
x = 10,196,042.24
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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.