Finding the Fourth Proportional to 4,896,481.40, 7,330,206.90 and 3,639,879.80
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Solution
The fourth proportional to 4,896,481.40, 7,330,206.90 and 3,639,879.80 is: 5,449,029.59
Step by Step Solution
- Step 1: Write the proportion equation
4,896,481.40 : 7,330,206.90 = 3,639,879.80 : x - Step 2: Convert to fraction form
4,896,481.40/7,330,206.90 = 3,639,879.80/x - Step 3: Cross multiply
4,896,481.40x = 7,330,206.90 × 3,639,879.80 - Step 4: Simplify right side
4,896,481.40x = 26,681,072,025,130.62 - Step 5: Solve for x
x = 26,681,072,025,130.62/4,896,481.40 - Step 6: Final answer
x = 5,449,029.59
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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.