Finding the Fourth Proportional to 18,873,219.21, 28,309,544.35 and 8,491,106.35
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Solution
The fourth proportional to 18,873,219.21, 28,309,544.35 and 8,491,106.35 is: 12,736,531.54
Step by Step Solution
- Step 1: Write the proportion equation
18,873,219.21 : 28,309,544.35 = 8,491,106.35 : x - Step 2: Convert to fraction form
18,873,219.21/28,309,544.35 = 8,491,106.35/x - Step 3: Cross multiply
18,873,219.21x = 28,309,544.35 × 8,491,106.35 - Step 4: Simplify right side
18,873,219.21x = 240,379,351,795,891.62 - Step 5: Solve for x
x = 240,379,351,795,891.62/18,873,219.21 - Step 6: Final answer
x = 12,736,531.54
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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.