Finding the Fourth Proportional to 217,749,945.60, 326,624,918.40 and 201,121,747.20
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Solution
The fourth proportional to 217,749,945.60, 326,624,918.40 and 201,121,747.20 is: 301,682,620.80
Step by Step Solution
- Step 1: Write the proportion equation
217,749,945.60 : 326,624,918.40 = 201,121,747.20 : x - Step 2: Convert to fraction form
217,749,945.60/326,624,918.40 = 201,121,747.20/x - Step 3: Cross multiply
217,749,945.60x = 326,624,918.40 × 201,121,747.20 - Step 4: Simplify right side
217,749,945.60x = 65,691,374,267,665,416 - Step 5: Solve for x
x = 65,691,374,267,665,416/217,749,945.60 - Step 6: Final answer
x = 301,682,620.80
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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.