Finding the Fourth Proportional to 2,135,653.99, 2,947,163.12 and 1,168,764.89
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Solution
The fourth proportional to 2,135,653.99, 2,947,163.12 and 1,168,764.89 is: 1,612,873.99
Step by Step Solution
- Step 1: Write the proportion equation
2,135,653.99 : 2,947,163.12 = 1,168,764.89 : x - Step 2: Convert to fraction form
2,135,653.99/2,947,163.12 = 1,168,764.89/x - Step 3: Cross multiply
2,135,653.99x = 2,947,163.12 × 1,168,764.89 - Step 4: Simplify right side
2,135,653.99x = 3,444,540,759,179.22 - Step 5: Solve for x
x = 3,444,540,759,179.22/2,135,653.99 - Step 6: Final answer
x = 1,612,873.99
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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.