Finding the Fourth Proportional to 3,909,166.05, 5,394,645.55 and 2,190,298.87
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Solution
The fourth proportional to 3,909,166.05, 5,394,645.55 and 2,190,298.87 is: 3,022,610.42
Step by Step Solution
- Step 1: Write the proportion equation
3,909,166.05 : 5,394,645.55 = 2,190,298.87 : x - Step 2: Convert to fraction form
3,909,166.05/5,394,645.55 = 2,190,298.87/x - Step 3: Cross multiply
3,909,166.05x = 5,394,645.55 × 2,190,298.87 - Step 4: Simplify right side
3,909,166.05x = 11,815,886,049,376.28 - Step 5: Solve for x
x = 11,815,886,049,376.28/3,909,166.05 - Step 6: Final answer
x = 3,022,610.42
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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.