Finding the Fourth Proportional to 13,286,564.96, 19,929,847.70 and 3,189,185.96
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Solution
The fourth proportional to 13,286,564.96, 19,929,847.70 and 3,189,185.96 is: 4,783,779.00
Step by Step Solution
- Step 1: Write the proportion equation
13,286,564.96 : 19,929,847.70 = 3,189,185.96 : x - Step 2: Convert to fraction form
13,286,564.96/19,929,847.70 = 3,189,185.96/x - Step 3: Cross multiply
13,286,564.96x = 19,929,847.70 × 3,189,185.96 - Step 4: Simplify right side
13,286,564.96x = 63,559,990,378,102.02 - Step 5: Solve for x
x = 63,559,990,378,102.02/13,286,564.96 - Step 6: Final answer
x = 4,783,779.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.