Finding the Fourth Proportional to 18,372,873.44, 27,561,026.95 and 5,419,036.73
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Solution
The fourth proportional to 18,372,873.44, 27,561,026.95 and 5,419,036.73 is: 8,129,061.45
Step by Step Solution
- Step 1: Write the proportion equation
18,372,873.44 : 27,561,026.95 = 5,419,036.73 : x - Step 2: Convert to fraction form
18,372,873.44/27,561,026.95 = 5,419,036.73/x - Step 3: Cross multiply
18,372,873.44x = 27,561,026.95 × 5,419,036.73 - Step 4: Simplify right side
18,372,873.44x = 149,354,217,207,217.16 - Step 5: Solve for x
x = 149,354,217,207,217.16/18,372,873.44 - Step 6: Final answer
x = 8,129,061.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.