Finding the Fourth Proportional to 14,629,709.64, 20,189,207.70 and 8,434,633.62
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Solution
The fourth proportional to 14,629,709.64, 20,189,207.70 and 8,434,633.62 is: 11,639,914.54
Step by Step Solution
- Step 1: Write the proportion equation
14,629,709.64 : 20,189,207.70 = 8,434,633.62 : x - Step 2: Convert to fraction form
14,629,709.64/20,189,207.70 = 8,434,633.62/x - Step 3: Cross multiply
14,629,709.64x = 20,189,207.70 × 8,434,633.62 - Step 4: Simplify right side
14,629,709.64x = 170,288,570,027,582.84 - Step 5: Solve for x
x = 170,288,570,027,582.84/14,629,709.64 - Step 6: Final answer
x = 11,639,914.54
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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.