Finding the Fourth Proportional to 115,268,725.62, 172,890,309.87 and 29,007,155.70
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Solution
The fourth proportional to 115,268,725.62, 172,890,309.87 and 29,007,155.70 is: 43,507,517.85
Step by Step Solution
- Step 1: Write the proportion equation
115,268,725.62 : 172,890,309.87 = 29,007,155.70 : x - Step 2: Convert to fraction form
115,268,725.62/172,890,309.87 = 29,007,155.70/x - Step 3: Cross multiply
115,268,725.62x = 172,890,309.87 × 29,007,155.70 - Step 4: Simplify right side
115,268,725.62x = 5,015,056,137,420,337 - Step 5: Solve for x
x = 5,015,056,137,420,337/115,268,725.62 - Step 6: Final answer
x = 43,507,517.85
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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.