Finding the Fourth Proportional to 7,382,645.70, 11,073,968.55 and 6,372,907.80
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Solution
The fourth proportional to 7,382,645.70, 11,073,968.55 and 6,372,907.80 is: 9,559,361.70
Step by Step Solution
- Step 1: Write the proportion equation
7,382,645.70 : 11,073,968.55 = 6,372,907.80 : x - Step 2: Convert to fraction form
7,382,645.70/11,073,968.55 = 6,372,907.80/x - Step 3: Cross multiply
7,382,645.70x = 11,073,968.55 × 6,372,907.80 - Step 4: Simplify right side
7,382,645.70x = 70,573,380,549,249.69 - Step 5: Solve for x
x = 70,573,380,549,249.69/7,382,645.70 - Step 6: Final answer
x = 9,559,361.70
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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.