Finding the Fourth Proportional to 3,924,091.39, 5,415,694.58 and 2,181,934.48
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Solution
The fourth proportional to 3,924,091.39, 5,415,694.58 and 2,181,934.48 is: 3,011,318.95
Step by Step Solution
- Step 1: Write the proportion equation
3,924,091.39 : 5,415,694.58 = 2,181,934.48 : x - Step 2: Convert to fraction form
3,924,091.39/5,415,694.58 = 2,181,934.48/x - Step 3: Cross multiply
3,924,091.39x = 5,415,694.58 × 2,181,934.48 - Step 4: Simplify right side
3,924,091.39x = 11,816,690,749,475.57 - Step 5: Solve for x
x = 11,816,690,749,475.57/3,924,091.39 - Step 6: Final answer
x = 3,011,318.95
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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.