Finding the Fourth Proportional to 13,480,821.45, 20,219,238.97 and 4,959,165.02
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Solution
The fourth proportional to 13,480,821.45, 20,219,238.97 and 4,959,165.02 is: 7,438,014.28
Step by Step Solution
- Step 1: Write the proportion equation
13,480,821.45 : 20,219,238.97 = 4,959,165.02 : x - Step 2: Convert to fraction form
13,480,821.45/20,219,238.97 = 4,959,165.02/x - Step 3: Cross multiply
13,480,821.45x = 20,219,238.97 × 4,959,165.02 - Step 4: Simplify right side
13,480,821.45x = 100,270,542,517,550.72 - Step 5: Solve for x
x = 100,270,542,517,550.72/13,480,821.45 - Step 6: Final answer
x = 7,438,014.28
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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.