Finding the Fourth Proportional to 272,460,023.20, 376,307,613.84 and 198,450,310.24
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Solution
The fourth proportional to 272,460,023.20, 376,307,613.84 and 198,450,310.24 is: 274,089,247.42
Step by Step Solution
- Step 1: Write the proportion equation
272,460,023.20 : 376,307,613.84 = 198,450,310.24 : x - Step 2: Convert to fraction form
272,460,023.20/376,307,613.84 = 198,450,310.24/x - Step 3: Cross multiply
272,460,023.20x = 376,307,613.84 × 198,450,310.24 - Step 4: Simplify right side
272,460,023.20x = 74,678,362,712,222,112 - Step 5: Solve for x
x = 74,678,362,712,222,112/272,460,023.20 - Step 6: Final answer
x = 274,089,247.42
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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.