Finding the Fourth Proportional to 12,301,489.80, 18,452,234.70 and 4,728,702.60
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Solution
The fourth proportional to 12,301,489.80, 18,452,234.70 and 4,728,702.60 is: 7,093,053.90
Step by Step Solution
- Step 1: Write the proportion equation
12,301,489.80 : 18,452,234.70 = 4,728,702.60 : x - Step 2: Convert to fraction form
12,301,489.80/18,452,234.70 = 4,728,702.60/x - Step 3: Cross multiply
12,301,489.80x = 18,452,234.70 × 4,728,702.60 - Step 4: Simplify right side
12,301,489.80x = 87,255,130,201,700.20 - Step 5: Solve for x
x = 87,255,130,201,700.20/12,301,489.80 - Step 6: Final answer
x = 7,093,053.90
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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.