Finding the Fourth Proportional to 5,616,085.40, 8,424,128.10 and 2,775,609.80
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Solution
The fourth proportional to 5,616,085.40, 8,424,128.10 and 2,775,609.80 is: 4,163,414.70
Step by Step Solution
- Step 1: Write the proportion equation
5,616,085.40 : 8,424,128.10 = 2,775,609.80 : x - Step 2: Convert to fraction form
5,616,085.40/8,424,128.10 = 2,775,609.80/x - Step 3: Cross multiply
5,616,085.40x = 8,424,128.10 × 2,775,609.80 - Step 4: Simplify right side
5,616,085.40x = 23,382,092,510,815.38 - Step 5: Solve for x
x = 23,382,092,510,815.38/5,616,085.40 - Step 6: Final answer
x = 4,163,414.70
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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.