Finding the Fourth Proportional to 18,480,544.32, 27,725,540.32 and 7,117,942.08
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Solution
The fourth proportional to 18,480,544.32, 27,725,540.32 and 7,117,942.08 is: 10,678,732.55
Step by Step Solution
- Step 1: Write the proportion equation
18,480,544.32 : 27,725,540.32 = 7,117,942.08 : x - Step 2: Convert to fraction form
18,480,544.32/27,725,540.32 = 7,117,942.08/x - Step 3: Cross multiply
18,480,544.32x = 27,725,540.32 × 7,117,942.08 - Step 4: Simplify right side
18,480,544.32x = 197,348,790,134,464.66 - Step 5: Solve for x
x = 197,348,790,134,464.66/18,480,544.32 - Step 6: Final answer
x = 10,678,732.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.