Finding the Fourth Proportional to 18,134,816.40, 27,195,874.20 and 5,351,936.40
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Solution
The fourth proportional to 18,134,816.40, 27,195,874.20 and 5,351,936.40 is: 8,026,030.47
Step by Step Solution
- Step 1: Write the proportion equation
18,134,816.40 : 27,195,874.20 = 5,351,936.40 : x - Step 2: Convert to fraction form
18,134,816.40/27,195,874.20 = 5,351,936.40/x - Step 3: Cross multiply
18,134,816.40x = 27,195,874.20 × 5,351,936.40 - Step 4: Simplify right side
18,134,816.40x = 145,550,589,060,800.88 - Step 5: Solve for x
x = 145,550,589,060,800.88/18,134,816.40 - Step 6: Final answer
x = 8,026,030.47
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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.