Finding the Fourth Proportional to 13,318,861.18, 18,373,257.84 and 8,090,482.18
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Solution
The fourth proportional to 13,318,861.18, 18,373,257.84 and 8,090,482.18 is: 11,160,752.64
Step by Step Solution
- Step 1: Write the proportion equation
13,318,861.18 : 18,373,257.84 = 8,090,482.18 : x - Step 2: Convert to fraction form
13,318,861.18/18,373,257.84 = 8,090,482.18/x - Step 3: Cross multiply
13,318,861.18x = 18,373,257.84 × 8,090,482.18 - Step 4: Simplify right side
13,318,861.18x = 148,648,515,143,065.28 - Step 5: Solve for x
x = 148,648,515,143,065.28/13,318,861.18 - Step 6: Final answer
x = 11,160,752.64
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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.