Finding the Fourth Proportional to 20,768,797.08, 31,115,922.66 and 12,677,609.88
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Solution
The fourth proportional to 20,768,797.08, 31,115,922.66 and 12,677,609.88 is: 18,993,662.80
Step by Step Solution
- Step 1: Write the proportion equation
20,768,797.08 : 31,115,922.66 = 12,677,609.88 : x - Step 2: Convert to fraction form
20,768,797.08/31,115,922.66 = 12,677,609.88/x - Step 3: Cross multiply
20,768,797.08x = 31,115,922.66 × 12,677,609.88 - Step 4: Simplify right side
20,768,797.08x = 394,475,528,539,731.94 - Step 5: Solve for x
x = 394,475,528,539,731.94/20,768,797.08 - Step 6: Final answer
x = 18,993,662.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.