Finding the Fourth Proportional to 5,218,182.07, 7,201,431.83 and 3,013,137.90
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Solution
The fourth proportional to 5,218,182.07, 7,201,431.83 and 3,013,137.90 is: 4,158,326.96
Step by Step Solution
- Step 1: Write the proportion equation
5,218,182.07 : 7,201,431.83 = 3,013,137.90 : x - Step 2: Convert to fraction form
5,218,182.07/7,201,431.83 = 3,013,137.90/x - Step 3: Cross multiply
5,218,182.07x = 7,201,431.83 × 3,013,137.90 - Step 4: Simplify right side
5,218,182.07x = 21,698,907,188,772.20 - Step 5: Solve for x
x = 21,698,907,188,772.20/5,218,182.07 - Step 6: Final answer
x = 4,158,326.96
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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.