Finding the Fourth Proportional to 201,190,771.68, 301,903,271.40 and 84,597,690.12
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Solution
The fourth proportional to 201,190,771.68, 301,903,271.40 and 84,597,690.12 is: 126,945,779.80
Step by Step Solution
- Step 1: Write the proportion equation
201,190,771.68 : 301,903,271.40 = 84,597,690.12 : x - Step 2: Convert to fraction form
201,190,771.68/301,903,271.40 = 84,597,690.12/x - Step 3: Cross multiply
201,190,771.68x = 301,903,271.40 × 84,597,690.12 - Step 4: Simplify right side
201,190,771.68x = 25,540,319,400,111,456 - Step 5: Solve for x
x = 25,540,319,400,111,456/201,190,771.68 - Step 6: Final answer
x = 126,945,779.80
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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.