Finding the Fourth Proportional to 3,909,526.47, 5,394,874.38 and 2,167,179.11
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Solution
The fourth proportional to 3,909,526.47, 5,394,874.38 and 2,167,179.11 is: 2,990,556.31
Step by Step Solution
- Step 1: Write the proportion equation
3,909,526.47 : 5,394,874.38 = 2,167,179.11 : x - Step 2: Convert to fraction form
3,909,526.47/5,394,874.38 = 2,167,179.11/x - Step 3: Cross multiply
3,909,526.47x = 5,394,874.38 × 2,167,179.11 - Step 4: Simplify right side
3,909,526.47x = 11,691,659,057,410.20 - Step 5: Solve for x
x = 11,691,659,057,410.20/3,909,526.47 - Step 6: Final answer
x = 2,990,556.31
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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.