Finding the Fourth Proportional to 13,165,917.12, 19,743,769.85 and 4,528,375.20
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Solution
The fourth proportional to 13,165,917.12, 19,743,769.85 and 4,528,375.20 is: 6,790,806.66
Step by Step Solution
- Step 1: Write the proportion equation
13,165,917.12 : 19,743,769.85 = 4,528,375.20 : x - Step 2: Convert to fraction form
13,165,917.12/19,743,769.85 = 4,528,375.20/x - Step 3: Cross multiply
13,165,917.12x = 19,743,769.85 × 4,528,375.20 - Step 4: Simplify right side
13,165,917.12x = 89,407,197,720,605.84 - Step 5: Solve for x
x = 89,407,197,720,605.84/13,165,917.12 - Step 6: Final answer
x = 6,790,806.66
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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.