Finding the Fourth Proportional to 18,379,318.44, 27,571,972.50 and 5,426,778.48
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Solution
The fourth proportional to 18,379,318.44, 27,571,972.50 and 5,426,778.48 is: 8,141,051.99
Step by Step Solution
- Step 1: Write the proportion equation
18,379,318.44 : 27,571,972.50 = 5,426,778.48 : x - Step 2: Convert to fraction form
18,379,318.44/27,571,972.50 = 5,426,778.48/x - Step 3: Cross multiply
18,379,318.44x = 27,571,972.50 × 5,426,778.48 - Step 4: Simplify right side
18,379,318.44x = 149,626,987,014,151.81 - Step 5: Solve for x
x = 149,626,987,014,151.81/18,379,318.44 - Step 6: Final answer
x = 8,141,051.99
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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.