Finding the Fourth Proportional to 21,325,568.76, 29,398,676.22 and 15,203,368.44
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Solution
The fourth proportional to 21,325,568.76, 29,398,676.22 and 15,203,368.44 is: 20,958,827.00
Step by Step Solution
- Step 1: Write the proportion equation
21,325,568.76 : 29,398,676.22 = 15,203,368.44 : x - Step 2: Convert to fraction form
21,325,568.76/29,398,676.22 = 15,203,368.44/x - Step 3: Cross multiply
21,325,568.76x = 29,398,676.22 × 15,203,368.44 - Step 4: Simplify right side
21,325,568.76x = 446,958,906,220,926.44 - Step 5: Solve for x
x = 446,958,906,220,926.44/21,325,568.76 - Step 6: Final answer
x = 20,958,827.00
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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.