Finding the Fourth Proportional to 18,440,763.56, 25,424,596.28 and 15,120,826.28
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Solution
The fourth proportional to 18,440,763.56, 25,424,596.28 and 15,120,826.28 is: 20,847,341.94
Step by Step Solution
- Step 1: Write the proportion equation
18,440,763.56 : 25,424,596.28 = 15,120,826.28 : x - Step 2: Convert to fraction form
18,440,763.56/25,424,596.28 = 15,120,826.28/x - Step 3: Cross multiply
18,440,763.56x = 25,424,596.28 × 15,120,826.28 - Step 4: Simplify right side
18,440,763.56x = 384,440,903,589,014.25 - Step 5: Solve for x
x = 384,440,903,589,014.25/18,440,763.56 - Step 6: Final answer
x = 20,847,341.94
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1.5x scale
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.