Finding the Fourth Proportional to 18,232,911.07, 25,136,794.09 and 11,695,190.47
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Solution
The fourth proportional to 18,232,911.07, 25,136,794.09 and 11,695,190.47 is: 16,123,568.72
Step by Step Solution
- Step 1: Write the proportion equation
18,232,911.07 : 25,136,794.09 = 11,695,190.47 : x - Step 2: Convert to fraction form
18,232,911.07/25,136,794.09 = 11,695,190.47/x - Step 3: Cross multiply
18,232,911.07x = 25,136,794.09 × 11,695,190.47 - Step 4: Simplify right side
18,232,911.07x = 293,979,594,639,497.31 - Step 5: Solve for x
x = 293,979,594,639,497.31/18,232,911.07 - Step 6: Final answer
x = 16,123,568.72
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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.