Finding the Fourth Proportional to 12,357,736.40, 18,536,604.60 and 8,531,361.20
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Solution
The fourth proportional to 12,357,736.40, 18,536,604.60 and 8,531,361.20 is: 12,797,041.80
Step by Step Solution
- Step 1: Write the proportion equation
12,357,736.40 : 18,536,604.60 = 8,531,361.20 : x - Step 2: Convert to fraction form
12,357,736.40/18,536,604.60 = 8,531,361.20/x - Step 3: Cross multiply
12,357,736.40x = 18,536,604.60 × 8,531,361.20 - Step 4: Simplify right side
12,357,736.40x = 158,142,469,264,181.53 - Step 5: Solve for x
x = 158,142,469,264,181.53/12,357,736.40 - Step 6: Final answer
x = 12,797,041.80
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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.