Finding the Fourth Proportional to 5,390,351.94, 7,438,490.34 and 2,942,917.90
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Solution
The fourth proportional to 5,390,351.94, 7,438,490.34 and 2,942,917.90 is: 4,061,120.06
Step by Step Solution
- Step 1: Write the proportion equation
5,390,351.94 : 7,438,490.34 = 2,942,917.90 : x - Step 2: Convert to fraction form
5,390,351.94/7,438,490.34 = 2,942,917.90/x - Step 3: Cross multiply
5,390,351.94x = 7,438,490.34 × 2,942,917.90 - Step 4: Simplify right side
5,390,351.94x = 21,890,866,370,563.09 - Step 5: Solve for x
x = 21,890,866,370,563.09/5,390,351.94 - Step 6: Final answer
x = 4,061,120.06
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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.