Finding the Fourth Proportional to 5,470,542.40, 8,212,552.80 and 3,448,782.40
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Solution
The fourth proportional to 5,470,542.40, 8,212,552.80 and 3,448,782.40 is: 5,177,422.18
Step by Step Solution
- Step 1: Write the proportion equation
5,470,542.40 : 8,212,552.80 = 3,448,782.40 : x - Step 2: Convert to fraction form
5,470,542.40/8,212,552.80 = 3,448,782.40/x - Step 3: Cross multiply
5,470,542.40x = 8,212,552.80 × 3,448,782.40 - Step 4: Simplify right side
5,470,542.40x = 28,323,307,555,710.72 - Step 5: Solve for x
x = 28,323,307,555,710.72/5,470,542.40 - Step 6: Final answer
x = 5,177,422.18
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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.