Finding the Fourth Proportional to 11,188,234.80, 16,790,646.60 and 7,400,458.80
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Solution
The fourth proportional to 11,188,234.80, 16,790,646.60 and 7,400,458.80 is: 11,106,174.53
Step by Step Solution
- Step 1: Write the proportion equation
11,188,234.80 : 16,790,646.60 = 7,400,458.80 : x - Step 2: Convert to fraction form
11,188,234.80/16,790,646.60 = 7,400,458.80/x - Step 3: Cross multiply
11,188,234.80x = 16,790,646.60 × 7,400,458.80 - Step 4: Simplify right side
11,188,234.80x = 124,258,488,388,660.09 - Step 5: Solve for x
x = 124,258,488,388,660.09/11,188,234.80 - Step 6: Final answer
x = 11,106,174.53
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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.