Finding the Fourth Proportional to 11,084,771.90, 15,304,183.05 and 9,921,203.15
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Solution
The fourth proportional to 11,084,771.90, 15,304,183.05 and 9,921,203.15 is: 13,697,702.62
Step by Step Solution
- Step 1: Write the proportion equation
11,084,771.90 : 15,304,183.05 = 9,921,203.15 : x - Step 2: Convert to fraction form
11,084,771.90/15,304,183.05 = 9,921,203.15/x - Step 3: Cross multiply
11,084,771.90x = 15,304,183.05 × 9,921,203.15 - Step 4: Simplify right side
11,084,771.90x = 151,835,909,083,836.62 - Step 5: Solve for x
x = 151,835,909,083,836.62/11,084,771.90 - Step 6: Final answer
x = 13,697,702.62
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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.