Finding the Fourth Proportional to 21,406,093.57, 29,540,427.99 and 11,616,537.55
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Solution
The fourth proportional to 21,406,093.57, 29,540,427.99 and 11,616,537.55 is: 16,030,832.06
Step by Step Solution
- Step 1: Write the proportion equation
21,406,093.57 : 29,540,427.99 = 11,616,537.55 : x - Step 2: Convert to fraction form
21,406,093.57/29,540,427.99 = 11,616,537.55/x - Step 3: Cross multiply
21,406,093.57x = 29,540,427.99 × 11,616,537.55 - Step 4: Simplify right side
21,406,093.57x = 343,157,490,988,906 - Step 5: Solve for x
x = 343,157,490,988,906/21,406,093.57 - Step 6: Final answer
x = 16,030,832.06
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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.