Finding the Fourth Proportional to 146,215,570.12, 201,770,564.42 and 87,510,580.36
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Solution
The fourth proportional to 146,215,570.12, 201,770,564.42 and 87,510,580.36 is: 120,760,457.85
Step by Step Solution
- Step 1: Write the proportion equation
146,215,570.12 : 201,770,564.42 = 87,510,580.36 : x - Step 2: Convert to fraction form
146,215,570.12/201,770,564.42 = 87,510,580.36/x - Step 3: Cross multiply
146,215,570.12x = 201,770,564.42 × 87,510,580.36 - Step 4: Simplify right side
146,215,570.12x = 17,657,059,191,958,966 - Step 5: Solve for x
x = 17,657,059,191,958,966/146,215,570.12 - Step 6: Final answer
x = 120,760,457.85
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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.