Finding the Fourth Proportional to 21,439,106.38, 29,586,154.23 and 11,649,550.53
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Solution
The fourth proportional to 21,439,106.38, 29,586,154.23 and 11,649,550.53 is: 16,076,481.58
Step by Step Solution
- Step 1: Write the proportion equation
21,439,106.38 : 29,586,154.23 = 11,649,550.53 : x - Step 2: Convert to fraction form
21,439,106.38/29,586,154.23 = 11,649,550.53/x - Step 3: Cross multiply
21,439,106.38x = 29,586,154.23 × 11,649,550.53 - Step 4: Simplify right side
21,439,106.38x = 344,665,398,635,284.19 - Step 5: Solve for x
x = 344,665,398,635,284.19/21,439,106.38 - Step 6: Final answer
x = 16,076,481.58
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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.