Finding the Fourth Proportional to 5,172,465.73, 7,138,224.15 and 2,880,626.43
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Solution
The fourth proportional to 5,172,465.73, 7,138,224.15 and 2,880,626.43 is: 3,975,387.80
Step by Step Solution
- Step 1: Write the proportion equation
5,172,465.73 : 7,138,224.15 = 2,880,626.43 : x - Step 2: Convert to fraction form
5,172,465.73/7,138,224.15 = 2,880,626.43/x - Step 3: Cross multiply
5,172,465.73x = 7,138,224.15 × 2,880,626.43 - Step 4: Simplify right side
5,172,465.73x = 20,562,557,149,754.29 - Step 5: Solve for x
x = 20,562,557,149,754.29/5,172,465.73 - Step 6: Final answer
x = 3,975,387.80
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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.