Finding the Fourth Proportional to 13,269,634.05, 18,311,505.97 and 7,389,571.55
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Solution
The fourth proportional to 13,269,634.05, 18,311,505.97 and 7,389,571.55 is: 10,197,280.73
Step by Step Solution
- Step 1: Write the proportion equation
13,269,634.05 : 18,311,505.97 = 7,389,571.55 : x - Step 2: Convert to fraction form
13,269,634.05/18,311,505.97 = 7,389,571.55/x - Step 3: Cross multiply
13,269,634.05x = 18,311,505.97 × 7,389,571.55 - Step 4: Simplify right side
13,269,634.05x = 135,314,183,553,567.14 - Step 5: Solve for x
x = 135,314,183,553,567.14/13,269,634.05 - Step 6: Final answer
x = 10,197,280.73
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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.