Finding the Fourth Proportional to 32,879,153.16, 45,372,114.36 and 18,195,438.60
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Solution
The fourth proportional to 32,879,153.16, 45,372,114.36 and 18,195,438.60 is: 25,109,087.12
Step by Step Solution
- Step 1: Write the proportion equation
32,879,153.16 : 45,372,114.36 = 18,195,438.60 : x - Step 2: Convert to fraction form
32,879,153.16/45,372,114.36 = 18,195,438.60/x - Step 3: Cross multiply
32,879,153.16x = 45,372,114.36 × 18,195,438.60 - Step 4: Simplify right side
32,879,153.16x = 825,565,520,989,558.38 - Step 5: Solve for x
x = 825,565,520,989,558.38/32,879,153.16 - Step 6: Final answer
x = 25,109,087.12
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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.