Finding the Fourth Proportional to 23,256,420.75, 32,093,860.64 and 12,945,579.62
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Solution
The fourth proportional to 23,256,420.75, 32,093,860.64 and 12,945,579.62 is: 17,864,899.87
Step by Step Solution
- Step 1: Write the proportion equation
23,256,420.75 : 32,093,860.64 = 12,945,579.62 : x - Step 2: Convert to fraction form
23,256,420.75/32,093,860.64 = 12,945,579.62/x - Step 3: Cross multiply
23,256,420.75x = 32,093,860.64 × 12,945,579.62 - Step 4: Simplify right side
23,256,420.75x = 415,473,628,003,107 - Step 5: Solve for x
x = 415,473,628,003,107/23,256,420.75 - Step 6: Final answer
x = 17,864,899.87
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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.