Finding the Fourth Proportional to 18,883,938.30, 26,057,523.08 and 11,911,998.26
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Solution
The fourth proportional to 18,883,938.30, 26,057,523.08 and 11,911,998.26 is: 16,437,099.33
Step by Step Solution
- Step 1: Write the proportion equation
18,883,938.30 : 26,057,523.08 = 11,911,998.26 : x - Step 2: Convert to fraction form
18,883,938.30/26,057,523.08 = 11,911,998.26/x - Step 3: Cross multiply
18,883,938.30x = 26,057,523.08 × 11,911,998.26 - Step 4: Simplify right side
18,883,938.30x = 310,397,169,588,869.81 - Step 5: Solve for x
x = 310,397,169,588,869.81/18,883,938.30 - Step 6: Final answer
x = 16,437,099.33
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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.