Finding the Fourth Proportional to 5,198,574.31, 7,173,551.08 and 2,875,416.82
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Solution
The fourth proportional to 5,198,574.31, 7,173,551.08 and 2,875,416.82 is: 3,967,808.90
Step by Step Solution
- Step 1: Write the proportion equation
5,198,574.31 : 7,173,551.08 = 2,875,416.82 : x - Step 2: Convert to fraction form
5,198,574.31/7,173,551.08 = 2,875,416.82/x - Step 3: Cross multiply
5,198,574.31x = 7,173,551.08 × 2,875,416.82 - Step 4: Simplify right side
5,198,574.31x = 20,626,949,409,438.74 - Step 5: Solve for x
x = 20,626,949,409,438.74/5,198,574.31 - Step 6: Final answer
x = 3,967,808.90
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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.