Finding the Fourth Proportional to 13,289,375.80, 19,934,063.70 and 13,163,404.60
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Solution
The fourth proportional to 13,289,375.80, 19,934,063.70 and 13,163,404.60 is: 19,745,106.90
Step by Step Solution
- Step 1: Write the proportion equation
13,289,375.80 : 19,934,063.70 = 13,163,404.60 : x - Step 2: Convert to fraction form
13,289,375.80/19,934,063.70 = 13,163,404.60/x - Step 3: Cross multiply
13,289,375.80x = 19,934,063.70 × 13,163,404.60 - Step 4: Simplify right side
13,289,375.80x = 262,400,145,805,273 - Step 5: Solve for x
x = 262,400,145,805,273/13,289,375.80 - Step 6: Final answer
x = 19,745,106.90
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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.