Finding the Fourth Proportional to 12,134,232.88, 18,134,861.23 and 8,858,485.58
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Solution
The fourth proportional to 12,134,232.88, 18,134,861.23 and 8,858,485.58 is: 13,239,189.35
Step by Step Solution
- Step 1: Write the proportion equation
12,134,232.88 : 18,134,861.23 = 8,858,485.58 : x - Step 2: Convert to fraction form
12,134,232.88/18,134,861.23 = 8,858,485.58/x - Step 3: Cross multiply
12,134,232.88x = 18,134,861.23 × 8,858,485.58 - Step 4: Simplify right side
12,134,232.88x = 160,647,406,724,447 - Step 5: Solve for x
x = 160,647,406,724,447/12,134,232.88 - Step 6: Final answer
x = 13,239,189.35
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.