Finding the Fourth Proportional to 19,345,211.20, 28,992,933.60 and 11,764,129.60
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Solution
The fourth proportional to 19,345,211.20, 28,992,933.60 and 11,764,129.60 is: 17,631,062.53
Step by Step Solution
- Step 1: Write the proportion equation
19,345,211.20 : 28,992,933.60 = 11,764,129.60 : x - Step 2: Convert to fraction form
19,345,211.20/28,992,933.60 = 11,764,129.60/x - Step 3: Cross multiply
19,345,211.20x = 28,992,933.60 × 11,764,129.60 - Step 4: Simplify right side
19,345,211.20x = 341,076,628,354,594.56 - Step 5: Solve for x
x = 341,076,628,354,594.56/19,345,211.20 - Step 6: Final answer
x = 17,631,062.53
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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.