Finding the Fourth Proportional to 18,534,724.80, 27,779,968.80 and 7,752,004.80
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Solution
The fourth proportional to 18,534,724.80, 27,779,968.80 and 7,752,004.80 is: 11,618,756.35
Step by Step Solution
- Step 1: Write the proportion equation
18,534,724.80 : 27,779,968.80 = 7,752,004.80 : x - Step 2: Convert to fraction form
18,534,724.80/27,779,968.80 = 7,752,004.80/x - Step 3: Cross multiply
18,534,724.80x = 27,779,968.80 × 7,752,004.80 - Step 4: Simplify right side
18,534,724.80x = 215,350,451,481,450.25 - Step 5: Solve for x
x = 215,350,451,481,450.25/18,534,724.80 - Step 6: Final answer
x = 11,618,756.35
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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.