Finding the Fourth Proportional to 12,128,282.66, 18,195,039.74 and 3,492,324.94
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Solution
The fourth proportional to 12,128,282.66, 18,195,039.74 and 3,492,324.94 is: 5,239,240.61
Step by Step Solution
- Step 1: Write the proportion equation
12,128,282.66 : 18,195,039.74 = 3,492,324.94 : x - Step 2: Convert to fraction form
12,128,282.66/18,195,039.74 = 3,492,324.94/x - Step 3: Cross multiply
12,128,282.66x = 18,195,039.74 × 3,492,324.94 - Step 4: Simplify right side
12,128,282.66x = 63,542,991,068,293.11 - Step 5: Solve for x
x = 63,542,991,068,293.11/12,128,282.66 - Step 6: Final answer
x = 5,239,240.61
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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.