Finding the Fourth Proportional to 5,198,873.74, 7,173,893.43 and 2,875,397.05
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Solution
The fourth proportional to 5,198,873.74, 7,173,893.43 and 2,875,397.05 is: 3,967,742.45
Step by Step Solution
- Step 1: Write the proportion equation
5,198,873.74 : 7,173,893.43 = 2,875,397.05 : x - Step 2: Convert to fraction form
5,198,873.74/7,173,893.43 = 2,875,397.05/x - Step 3: Cross multiply
5,198,873.74x = 7,173,893.43 × 2,875,397.05 - Step 4: Simplify right side
5,198,873.74x = 20,627,792,005,636.38 - Step 5: Solve for x
x = 20,627,792,005,636.38/5,198,873.74 - Step 6: Final answer
x = 3,967,742.45
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1.5x scale
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.