Finding the Fourth Proportional to 18,086,115.60, 27,129,173.40 and 14,684,893.20
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Solution
The fourth proportional to 18,086,115.60, 27,129,173.40 and 14,684,893.20 is: 22,027,339.80
Step by Step Solution
- Step 1: Write the proportion equation
18,086,115.60 : 27,129,173.40 = 14,684,893.20 : x - Step 2: Convert to fraction form
18,086,115.60/27,129,173.40 = 14,684,893.20/x - Step 3: Cross multiply
18,086,115.60x = 27,129,173.40 × 14,684,893.20 - Step 4: Simplify right side
18,086,115.60x = 398,389,013,983,280.81 - Step 5: Solve for x
x = 398,389,013,983,280.81/18,086,115.60 - Step 6: Final answer
x = 22,027,339.80
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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.