Finding the Fourth Proportional to 7,780,353.28, 11,662,546.56 and 2,986,751.68
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Solution
The fourth proportional to 7,780,353.28, 11,662,546.56 and 2,986,751.68 is: 4,477,062.84
Step by Step Solution
- Step 1: Write the proportion equation
7,780,353.28 : 11,662,546.56 = 2,986,751.68 : x - Step 2: Convert to fraction form
7,780,353.28/11,662,546.56 = 2,986,751.68/x - Step 3: Cross multiply
7,780,353.28x = 11,662,546.56 × 2,986,751.68 - Step 4: Simplify right side
7,780,353.28x = 34,833,130,531,158.22 - Step 5: Solve for x
x = 34,833,130,531,158.22/7,780,353.28 - Step 6: Final answer
x = 4,477,062.84
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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.