Finding the Fourth Proportional to 5,135,615.56, 7,087,147.86 and 2,843,775.64
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Solution
The fourth proportional to 5,135,615.56, 7,087,147.86 and 2,843,775.64 is: 3,924,409.49
Step by Step Solution
- Step 1: Write the proportion equation
5,135,615.56 : 7,087,147.86 = 2,843,775.64 : x - Step 2: Convert to fraction form
5,135,615.56/7,087,147.86 = 2,843,775.64/x - Step 3: Cross multiply
5,135,615.56x = 7,087,147.86 × 2,843,775.64 - Step 4: Simplify right side
5,135,615.56x = 20,154,258,441,346.13 - Step 5: Solve for x
x = 20,154,258,441,346.13/5,135,615.56 - Step 6: Final answer
x = 3,924,409.49
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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.