Finding the Fourth Proportional to 13,619,014.53, 20,405,814.66 and 11,197,636.17
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Solution
The fourth proportional to 13,619,014.53, 20,405,814.66 and 11,197,636.17 is: 16,777,784.31
Step by Step Solution
- Step 1: Write the proportion equation
13,619,014.53 : 20,405,814.66 = 11,197,636.17 : x - Step 2: Convert to fraction form
13,619,014.53/20,405,814.66 = 11,197,636.17/x - Step 3: Cross multiply
13,619,014.53x = 20,405,814.66 × 11,197,636.17 - Step 4: Simplify right side
13,619,014.53x = 228,496,888,315,132.25 - Step 5: Solve for x
x = 228,496,888,315,132.25/13,619,014.53 - Step 6: Final answer
x = 16,777,784.31
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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.