Finding the Fourth Proportional to 18,989,249.41, 28,483,874.45 and 4,612,220.31
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Solution
The fourth proportional to 18,989,249.41, 28,483,874.45 and 4,612,220.31 is: 6,918,330.54
Step by Step Solution
- Step 1: Write the proportion equation
18,989,249.41 : 28,483,874.45 = 4,612,220.31 : x - Step 2: Convert to fraction form
18,989,249.41/28,483,874.45 = 4,612,220.31/x - Step 3: Cross multiply
18,989,249.41x = 28,483,874.45 × 4,612,220.31 - Step 4: Simplify right side
18,989,249.41x = 131,373,904,151,509.30 - Step 5: Solve for x
x = 131,373,904,151,509.30/18,989,249.41 - Step 6: Final answer
x = 6,918,330.54
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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.