Finding the Fourth Proportional to 21,102,500.16, 29,112,204.24 and 12,396,745.44
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Solution
The fourth proportional to 21,102,500.16, 29,112,204.24 and 12,396,745.44 is: 17,102,077.12
Step by Step Solution
- Step 1: Write the proportion equation
21,102,500.16 : 29,112,204.24 = 12,396,745.44 : x - Step 2: Convert to fraction form
21,102,500.16/29,112,204.24 = 12,396,745.44/x - Step 3: Cross multiply
21,102,500.16x = 29,112,204.24 × 12,396,745.44 - Step 4: Simplify right side
21,102,500.16x = 360,896,585,160,568.62 - Step 5: Solve for x
x = 360,896,585,160,568.62/21,102,500.16 - Step 6: Final answer
x = 17,102,077.12
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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.