Finding the Fourth Proportional to 5,783,421.87, 7,980,986.37 and 3,205,047.29
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Solution
The fourth proportional to 5,783,421.87, 7,980,986.37 and 3,205,047.29 is: 4,422,889.99
Step by Step Solution
- Step 1: Write the proportion equation
5,783,421.87 : 7,980,986.37 = 3,205,047.29 : x - Step 2: Convert to fraction form
5,783,421.87/7,980,986.37 = 3,205,047.29/x - Step 3: Cross multiply
5,783,421.87x = 7,980,986.37 × 3,205,047.29 - Step 4: Simplify right side
5,783,421.87x = 25,579,438,696,790.51 - Step 5: Solve for x
x = 25,579,438,696,790.51/5,783,421.87 - Step 6: Final answer
x = 4,422,889.99
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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.