Finding the Fourth Proportional to 5,322,765.28, 7,990,116.24 and 2,130,116.80
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Solution
The fourth proportional to 5,322,765.28, 7,990,116.24 and 2,130,116.80 is: 3,197,563.66
Step by Step Solution
- Step 1: Write the proportion equation
5,322,765.28 : 7,990,116.24 = 2,130,116.80 : x - Step 2: Convert to fraction form
5,322,765.28/7,990,116.24 = 2,130,116.80/x - Step 3: Cross multiply
5,322,765.28x = 7,990,116.24 × 2,130,116.80 - Step 4: Simplify right side
5,322,765.28x = 17,019,880,836,776.83 - Step 5: Solve for x
x = 17,019,880,836,776.83/5,322,765.28 - Step 6: Final answer
x = 3,197,563.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.