Finding the Fourth Proportional to 5,198,928.17, 7,173,968.63 and 2,875,451.63
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Solution
The fourth proportional to 5,198,928.17, 7,173,968.63 and 2,875,451.63 is: 3,967,817.81
Step by Step Solution
- Step 1: Write the proportion equation
5,198,928.17 : 7,173,968.63 = 2,875,451.63 : x - Step 2: Convert to fraction form
5,198,928.17/7,173,968.63 = 2,875,451.63/x - Step 3: Cross multiply
5,198,928.17x = 7,173,968.63 × 2,875,451.63 - Step 4: Simplify right side
5,198,928.17x = 20,628,399,740,455.27 - Step 5: Solve for x
x = 20,628,399,740,455.27/5,198,928.17 - Step 6: Final answer
x = 3,967,817.81
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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.