Finding the Fourth Proportional to 85,468,968.40, 128,203,452.60 and 24,886,670.80
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Solution
The fourth proportional to 85,468,968.40, 128,203,452.60 and 24,886,670.80 is: 37,330,006.20
Step by Step Solution
- Step 1: Write the proportion equation
85,468,968.40 : 128,203,452.60 = 24,886,670.80 : x - Step 2: Convert to fraction form
85,468,968.40/128,203,452.60 = 24,886,670.80/x - Step 3: Cross multiply
85,468,968.40x = 128,203,452.60 × 24,886,670.80 - Step 4: Simplify right side
85,468,968.40x = 3,190,557,120,279,604 - Step 5: Solve for x
x = 3,190,557,120,279,604/85,468,968.40 - Step 6: Final answer
x = 37,330,006.20
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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.