Finding the Fourth Proportional to 12,611,857.64, 18,917,786.66 and 3,027,236.15
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Solution
The fourth proportional to 12,611,857.64, 18,917,786.66 and 3,027,236.15 is: 4,540,854.28
Step by Step Solution
- Step 1: Write the proportion equation
12,611,857.64 : 18,917,786.66 = 3,027,236.15 : x - Step 2: Convert to fraction form
12,611,857.64/18,917,786.66 = 3,027,236.15/x - Step 3: Cross multiply
12,611,857.64x = 18,917,786.66 × 3,027,236.15 - Step 4: Simplify right side
12,611,857.64x = 57,268,607,687,298.05 - Step 5: Solve for x
x = 57,268,607,687,298.05/12,611,857.64 - Step 6: Final answer
x = 4,540,854.28
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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.