Finding the Fourth Proportional to 167,987,621.58, 231,691,497.84 and 109,269,037.19
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Solution
The fourth proportional to 167,987,621.58, 231,691,497.84 and 109,269,037.19 is: 150,705,788.05
Step by Step Solution
- Step 1: Write the proportion equation
167,987,621.58 : 231,691,497.84 = 109,269,037.19 : x - Step 2: Convert to fraction form
167,987,621.58/231,691,497.84 = 109,269,037.19/x - Step 3: Cross multiply
167,987,621.58x = 231,691,497.84 × 109,269,037.19 - Step 4: Simplify right side
167,987,621.58x = 25,316,706,892,927,308 - Step 5: Solve for x
x = 25,316,706,892,927,308/167,987,621.58 - Step 6: Final answer
x = 150,705,788.05
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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.