Finding the Fourth Proportional to 3,900,318.24, 5,382,410.00 and 2,181,438.76
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Solution
The fourth proportional to 3,900,318.24, 5,382,410.00 and 2,181,438.76 is: 3,010,369.16
Step by Step Solution
- Step 1: Write the proportion equation
3,900,318.24 : 5,382,410.00 = 2,181,438.76 : x - Step 2: Convert to fraction form
3,900,318.24/5,382,410.00 = 2,181,438.76/x - Step 3: Cross multiply
3,900,318.24x = 5,382,410.00 × 2,181,438.76 - Step 4: Simplify right side
3,900,318.24x = 11,741,397,758,392.36 - Step 5: Solve for x
x = 11,741,397,758,392.36/3,900,318.24 - Step 6: Final answer
x = 3,010,369.16
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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.