Finding the Fourth Proportional to 3,129,845.32, 4,319,241.60 and 1,753,177.42
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Solution
The fourth proportional to 3,129,845.32, 4,319,241.60 and 1,753,177.42 is: 2,419,415.68
Step by Step Solution
- Step 1: Write the proportion equation
3,129,845.32 : 4,319,241.60 = 1,753,177.42 : x - Step 2: Convert to fraction form
3,129,845.32/4,319,241.60 = 1,753,177.42/x - Step 3: Cross multiply
3,129,845.32x = 4,319,241.60 × 1,753,177.42 - Step 4: Simplify right side
3,129,845.32x = 7,572,396,844,644.67 - Step 5: Solve for x
x = 7,572,396,844,644.67/3,129,845.32 - Step 6: Final answer
x = 2,419,415.68
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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.