Finding the Fourth Proportional to 11,081,815.80, 16,622,723.70 and 6,830,287.80
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Solution
The fourth proportional to 11,081,815.80, 16,622,723.70 and 6,830,287.80 is: 10,245,431.70
Step by Step Solution
- Step 1: Write the proportion equation
11,081,815.80 : 16,622,723.70 = 6,830,287.80 : x - Step 2: Convert to fraction form
11,081,815.80/16,622,723.70 = 6,830,287.80/x - Step 3: Cross multiply
11,081,815.80x = 16,622,723.70 × 6,830,287.80 - Step 4: Simplify right side
11,081,815.80x = 113,537,986,890,880.86 - Step 5: Solve for x
x = 113,537,986,890,880.86/11,081,815.80 - Step 6: Final answer
x = 10,245,431.70
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Double scale
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Similar ratio
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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.