Finding the Fourth Proportional to 21,972,406.80, 32,952,311.62 and 6,621,183.12
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Solution
The fourth proportional to 21,972,406.80, 32,952,311.62 and 6,621,183.12 is: 9,929,876.66
Step by Step Solution
- Step 1: Write the proportion equation
21,972,406.80 : 32,952,311.62 = 6,621,183.12 : x - Step 2: Convert to fraction form
21,972,406.80/32,952,311.62 = 6,621,183.12/x - Step 3: Cross multiply
21,972,406.80x = 32,952,311.62 × 6,621,183.12 - Step 4: Simplify right side
21,972,406.80x = 218,183,289,463,323.88 - Step 5: Solve for x
x = 218,183,289,463,323.88/21,972,406.80 - Step 6: Final answer
x = 9,929,876.66
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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.