Finding the Fourth Proportional to 11,869,916.80, 16,380,485.19 and 6,437,408.80
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Solution
The fourth proportional to 11,869,916.80, 16,380,485.19 and 6,437,408.80 is: 8,883,624.15
Step by Step Solution
- Step 1: Write the proportion equation
11,869,916.80 : 16,380,485.19 = 6,437,408.80 : x - Step 2: Convert to fraction form
11,869,916.80/16,380,485.19 = 6,437,408.80/x - Step 3: Cross multiply
11,869,916.80x = 16,380,485.19 × 6,437,408.80 - Step 4: Simplify right side
11,869,916.80x = 105,447,879,510,375.67 - Step 5: Solve for x
x = 105,447,879,510,375.67/11,869,916.80 - Step 6: Final answer
x = 8,883,624.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.