Finding the Fourth Proportional to 10,752,816.40, 16,129,224.60 and 5,378,045.20
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Solution
The fourth proportional to 10,752,816.40, 16,129,224.60 and 5,378,045.20 is: 8,067,067.80
Step by Step Solution
- Step 1: Write the proportion equation
10,752,816.40 : 16,129,224.60 = 5,378,045.20 : x - Step 2: Convert to fraction form
10,752,816.40/16,129,224.60 = 5,378,045.20/x - Step 3: Cross multiply
10,752,816.40x = 16,129,224.60 × 5,378,045.20 - Step 4: Simplify right side
10,752,816.40x = 86,743,698,939,751.92 - Step 5: Solve for x
x = 86,743,698,939,751.92/10,752,816.40 - Step 6: Final answer
x = 8,067,067.80
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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.