Finding the Fourth Proportional to 18,443,342.90, 27,681,744.90 and 9,351,765.20
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Solution
The fourth proportional to 18,443,342.90, 27,681,744.90 and 9,351,765.20 is: 14,036,131.09
Step by Step Solution
- Step 1: Write the proportion equation
18,443,342.90 : 27,681,744.90 = 9,351,765.20 : x - Step 2: Convert to fraction form
18,443,342.90/27,681,744.90 = 9,351,765.20/x - Step 3: Cross multiply
18,443,342.90x = 27,681,744.90 × 9,351,765.20 - Step 4: Simplify right side
18,443,342.90x = 258,873,178,631,097.44 - Step 5: Solve for x
x = 258,873,178,631,097.44/18,443,342.90 - Step 6: Final answer
x = 14,036,131.09
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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.