Finding the Fourth Proportional to 5,467,948.20, 8,201,879.10 and 1,424,428.20
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Solution
The fourth proportional to 5,467,948.20, 8,201,879.10 and 1,424,428.20 is: 2,136,631.05
Step by Step Solution
- Step 1: Write the proportion equation
5,467,948.20 : 8,201,879.10 = 1,424,428.20 : x - Step 2: Convert to fraction form
5,467,948.20/8,201,879.10 = 1,424,428.20/x - Step 3: Cross multiply
5,467,948.20x = 8,201,879.10 × 1,424,428.20 - Step 4: Simplify right side
5,467,948.20x = 11,682,987,883,030.62 - Step 5: Solve for x
x = 11,682,987,883,030.62/5,467,948.20 - Step 6: Final answer
x = 2,136,631.05
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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.