Finding the Fourth Proportional to 85,469,033.40, 128,203,550.10 and 24,886,735.80
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Solution
The fourth proportional to 85,469,033.40, 128,203,550.10 and 24,886,735.80 is: 37,330,103.70
Step by Step Solution
- Step 1: Write the proportion equation
85,469,033.40 : 128,203,550.10 = 24,886,735.80 : x - Step 2: Convert to fraction form
85,469,033.40/128,203,550.10 = 24,886,735.80/x - Step 3: Cross multiply
85,469,033.40x = 128,203,550.10 × 24,886,735.80 - Step 4: Simplify right side
85,469,033.40x = 3,190,567,879,960,763.50 - Step 5: Solve for x
x = 3,190,567,879,960,763.50/85,469,033.40 - Step 6: Final answer
x = 37,330,103.70
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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.