Finding the Fourth Proportional to 18,633,236.46, 27,950,225.87 and 4,986,360.10
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Solution
The fourth proportional to 18,633,236.46, 27,950,225.87 and 4,986,360.10 is: 7,479,639.48
Step by Step Solution
- Step 1: Write the proportion equation
18,633,236.46 : 27,950,225.87 = 4,986,360.10 : x - Step 2: Convert to fraction form
18,633,236.46/27,950,225.87 = 4,986,360.10/x - Step 3: Cross multiply
18,633,236.46x = 27,950,225.87 × 4,986,360.10 - Step 4: Simplify right side
18,633,236.46x = 139,369,891,064,155.78 - Step 5: Solve for x
x = 139,369,891,064,155.78/18,633,236.46 - Step 6: Final answer
x = 7,479,639.48
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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.