Finding the Fourth Proportional to 13,156,915.15, 19,704,716.45 and 12,793,698.19
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Solution
The fourth proportional to 13,156,915.15, 19,704,716.45 and 12,793,698.19 is: 19,160,737.33
Step by Step Solution
- Step 1: Write the proportion equation
13,156,915.15 : 19,704,716.45 = 12,793,698.19 : x - Step 2: Convert to fraction form
13,156,915.15/19,704,716.45 = 12,793,698.19/x - Step 3: Cross multiply
13,156,915.15x = 19,704,716.45 × 12,793,698.19 - Step 4: Simplify right side
13,156,915.15x = 252,096,195,261,431.53 - Step 5: Solve for x
x = 252,096,195,261,431.53/13,156,915.15 - Step 6: Final answer
x = 19,160,737.33
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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.