Finding the Fourth Proportional to 252,058,438.40, 378,087,657.60 and 201,040,102.40
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Solution
The fourth proportional to 252,058,438.40, 378,087,657.60 and 201,040,102.40 is: 301,560,153.60
Step by Step Solution
- Step 1: Write the proportion equation
252,058,438.40 : 378,087,657.60 = 201,040,102.40 : x - Step 2: Convert to fraction form
252,058,438.40/378,087,657.60 = 201,040,102.40/x - Step 3: Cross multiply
252,058,438.40x = 378,087,657.60 × 201,040,102.40 - Step 4: Simplify right side
252,058,438.40x = 76,010,781,400,080,144 - Step 5: Solve for x
x = 76,010,781,400,080,144/252,058,438.40 - Step 6: Final answer
x = 301,560,153.60
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1.5x scale
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.