Finding the Fourth Proportional to 5,301,546.21, 7,316,163.10 and 2,978,536.68
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Solution
The fourth proportional to 5,301,546.21, 7,316,163.10 and 2,978,536.68 is: 4,110,397.09
Step by Step Solution
- Step 1: Write the proportion equation
5,301,546.21 : 7,316,163.10 = 2,978,536.68 : x - Step 2: Convert to fraction form
5,301,546.21/7,316,163.10 = 2,978,536.68/x - Step 3: Cross multiply
5,301,546.21x = 7,316,163.10 × 2,978,536.68 - Step 4: Simplify right side
5,301,546.21x = 21,791,460,118,791.62 - Step 5: Solve for x
x = 21,791,460,118,791.62/5,301,546.21 - Step 6: Final answer
x = 4,110,397.09
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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.