Finding the Fourth Proportional to 5,218,481.28, 7,830,195.60 and 2,521,294.56
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Solution
The fourth proportional to 5,218,481.28, 7,830,195.60 and 2,521,294.56 is: 3,783,136.99
Step by Step Solution
- Step 1: Write the proportion equation
5,218,481.28 : 7,830,195.60 = 2,521,294.56 : x - Step 2: Convert to fraction form
5,218,481.28/7,830,195.60 = 2,521,294.56/x - Step 3: Cross multiply
5,218,481.28x = 7,830,195.60 × 2,521,294.56 - Step 4: Simplify right side
5,218,481.28x = 19,742,229,570,015.93 - Step 5: Solve for x
x = 19,742,229,570,015.93/5,218,481.28 - Step 6: Final answer
x = 3,783,136.99
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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.