Finding the Fourth Proportional to 7,203,136.36, 9,939,789.30 and 3,939,782.44
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Solution
The fourth proportional to 7,203,136.36, 9,939,789.30 and 3,939,782.44 is: 5,436,605.03
Step by Step Solution
- Step 1: Write the proportion equation
7,203,136.36 : 9,939,789.30 = 3,939,782.44 : x - Step 2: Convert to fraction form
7,203,136.36/9,939,789.30 = 3,939,782.44/x - Step 3: Cross multiply
7,203,136.36x = 9,939,789.30 × 3,939,782.44 - Step 4: Simplify right side
7,203,136.36x = 39,160,607,341,439.89 - Step 5: Solve for x
x = 39,160,607,341,439.89/7,203,136.36 - Step 6: Final answer
x = 5,436,605.03
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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.