Finding the Fourth Proportional to 81,287,872.78, 121,904,475.73 and 29,461,626.62
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Solution
The fourth proportional to 81,287,872.78, 121,904,475.73 and 29,461,626.62 is: 44,182,533.32
Step by Step Solution
- Step 1: Write the proportion equation
81,287,872.78 : 121,904,475.73 = 29,461,626.62 : x - Step 2: Convert to fraction form
81,287,872.78/121,904,475.73 = 29,461,626.62/x - Step 3: Cross multiply
81,287,872.78x = 121,904,475.73 × 29,461,626.62 - Step 4: Simplify right side
81,287,872.78x = 3,591,504,147,264,112 - Step 5: Solve for x
x = 3,591,504,147,264,112/81,287,872.78 - Step 6: Final answer
x = 44,182,533.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.