Finding the Fourth Proportional to 528,816,121.20, 793,224,181.80 and 140,638,201.20
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Solution
The fourth proportional to 528,816,121.20, 793,224,181.80 and 140,638,201.20 is: 210,957,301.80
Step by Step Solution
- Step 1: Write the proportion equation
528,816,121.20 : 793,224,181.80 = 140,638,201.20 : x - Step 2: Convert to fraction form
528,816,121.20/793,224,181.80 = 140,638,201.20/x - Step 3: Cross multiply
528,816,121.20x = 793,224,181.80 × 140,638,201.20 - Step 4: Simplify right side
528,816,121.20x = 111,557,622,076,693,760 - Step 5: Solve for x
x = 111,557,622,076,693,760/528,816,121.20 - Step 6: Final answer
x = 210,957,301.80
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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.