Finding the Fourth Proportional to 6,448,395.20, 9,678,813.60 and 3,257,124.80
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Solution
The fourth proportional to 6,448,395.20, 9,678,813.60 and 3,257,124.80 is: 4,888,829.37
Step by Step Solution
- Step 1: Write the proportion equation
6,448,395.20 : 9,678,813.60 = 3,257,124.80 : x - Step 2: Convert to fraction form
6,448,395.20/9,678,813.60 = 3,257,124.80/x - Step 3: Cross multiply
6,448,395.20x = 9,678,813.60 × 3,257,124.80 - Step 4: Simplify right side
6,448,395.20x = 31,525,103,811,137.28 - Step 5: Solve for x
x = 31,525,103,811,137.28/6,448,395.20 - Step 6: Final answer
x = 4,888,829.37
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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.