Finding the Fourth Proportional to 18,411,490.36, 25,418,742.54 and 16,368,645.28
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Solution
The fourth proportional to 18,411,490.36, 25,418,742.54 and 16,368,645.28 is: 22,598,408.49
Step by Step Solution
- Step 1: Write the proportion equation
18,411,490.36 : 25,418,742.54 = 16,368,645.28 : x - Step 2: Convert to fraction form
18,411,490.36/25,418,742.54 = 16,368,645.28/x - Step 3: Cross multiply
18,411,490.36x = 25,418,742.54 × 16,368,645.28 - Step 4: Simplify right side
18,411,490.36x = 416,070,380,100,906.19 - Step 5: Solve for x
x = 416,070,380,100,906.19/18,411,490.36 - Step 6: Final answer
x = 22,598,408.49
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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.