Finding the Fourth Proportional to 8,821,120.64, 12,174,463.04 and 5,385,353.44
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Solution
The fourth proportional to 8,821,120.64, 12,174,463.04 and 5,385,353.44 is: 7,432,591.51
Step by Step Solution
- Step 1: Write the proportion equation
8,821,120.64 : 12,174,463.04 = 5,385,353.44 : x - Step 2: Convert to fraction form
8,821,120.64/12,174,463.04 = 5,385,353.44/x - Step 3: Cross multiply
8,821,120.64x = 12,174,463.04 × 5,385,353.44 - Step 4: Simplify right side
8,821,120.64x = 65,563,786,412,616.86 - Step 5: Solve for x
x = 65,563,786,412,616.86/8,821,120.64 - Step 6: Final answer
x = 7,432,591.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.