Finding the Fourth Proportional to 167,617,507.38, 231,310,487.58 and 93,276,795.42
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Solution
The fourth proportional to 167,617,507.38, 231,310,487.58 and 93,276,795.42 is: 128,721,046.90
Step by Step Solution
- Step 1: Write the proportion equation
167,617,507.38 : 231,310,487.58 = 93,276,795.42 : x - Step 2: Convert to fraction form
167,617,507.38/231,310,487.58 = 93,276,795.42/x - Step 3: Cross multiply
167,617,507.38x = 231,310,487.58 × 93,276,795.42 - Step 4: Simplify right side
167,617,507.38x = 21,575,901,028,500,112 - Step 5: Solve for x
x = 21,575,901,028,500,112/167,617,507.38 - Step 6: Final answer
x = 128,721,046.90
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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.