Finding the Fourth Proportional to 5,177,964.44, 7,766,939.94 and 1,391,447.32
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Solution
The fourth proportional to 5,177,964.44, 7,766,939.94 and 1,391,447.32 is: 2,087,169.17
Step by Step Solution
- Step 1: Write the proportion equation
5,177,964.44 : 7,766,939.94 = 1,391,447.32 : x - Step 2: Convert to fraction form
5,177,964.44/7,766,939.94 = 1,391,447.32/x - Step 3: Cross multiply
5,177,964.44x = 7,766,939.94 × 1,391,447.32 - Step 4: Simplify right side
5,177,964.44x = 10,807,287,764,113.96 - Step 5: Solve for x
x = 10,807,287,764,113.96/5,177,964.44 - Step 6: Final answer
x = 2,087,169.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.