Finding the Fourth Proportional to 5,437,820.53, 7,504,384.90 and 2,990,620.99
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Solution
The fourth proportional to 5,437,820.53, 7,504,384.90 and 2,990,620.99 is: 4,127,162.87
Step by Step Solution
- Step 1: Write the proportion equation
5,437,820.53 : 7,504,384.90 = 2,990,620.99 : x - Step 2: Convert to fraction form
5,437,820.53/7,504,384.90 = 2,990,620.99/x - Step 3: Cross multiply
5,437,820.53x = 7,504,384.90 × 2,990,620.99 - Step 4: Simplify right side
5,437,820.53x = 22,442,770,983,956.36 - Step 5: Solve for x
x = 22,442,770,983,956.36/5,437,820.53 - Step 6: Final answer
x = 4,127,162.87
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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.