Finding the Fourth Proportional to 18,647,189.76, 27,970,745.76 and 5,868,811.20
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Solution
The fourth proportional to 18,647,189.76, 27,970,745.76 and 5,868,811.20 is: 8,803,204.56
Step by Step Solution
- Step 1: Write the proportion equation
18,647,189.76 : 27,970,745.76 = 5,868,811.20 : x - Step 2: Convert to fraction form
18,647,189.76/27,970,745.76 = 5,868,811.20/x - Step 3: Cross multiply
18,647,189.76x = 27,970,745.76 × 5,868,811.20 - Step 4: Simplify right side
18,647,189.76x = 164,155,025,988,640.53 - Step 5: Solve for x
x = 164,155,025,988,640.53/18,647,189.76 - Step 6: Final answer
x = 8,803,204.56
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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.