Finding the Fourth Proportional to 13,192,037.19, 18,204,571.18 and 7,311,420.79
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Solution
The fourth proportional to 13,192,037.19, 18,204,571.18 and 7,311,420.79 is: 10,089,516.75
Step by Step Solution
- Step 1: Write the proportion equation
13,192,037.19 : 18,204,571.18 = 7,311,420.79 : x - Step 2: Convert to fraction form
13,192,037.19/18,204,571.18 = 7,311,420.79/x - Step 3: Cross multiply
13,192,037.19x = 18,204,571.18 × 7,311,420.79 - Step 4: Simplify right side
13,192,037.19x = 133,101,280,198,486.83 - Step 5: Solve for x
x = 133,101,280,198,486.83/13,192,037.19 - Step 6: Final answer
x = 10,089,516.75
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1.5x scale
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.