Finding the Fourth Proportional to 8,438,559.76, 11,642,849.97 and 5,299,161.97
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Solution
The fourth proportional to 8,438,559.76, 11,642,849.97 and 5,299,161.97 is: 7,311,359.94
Step by Step Solution
- Step 1: Write the proportion equation
8,438,559.76 : 11,642,849.97 = 5,299,161.97 : x - Step 2: Convert to fraction form
8,438,559.76/11,642,849.97 = 5,299,161.97/x - Step 3: Cross multiply
8,438,559.76x = 11,642,849.97 × 5,299,161.97 - Step 4: Simplify right side
8,438,559.76x = 61,697,347,783,439.64 - Step 5: Solve for x
x = 61,697,347,783,439.64/8,438,559.76 - Step 6: Final answer
x = 7,311,359.94
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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.