Finding the Fourth Proportional to 90,291,409.40, 135,437,114.10 and 32,785,556.60
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Solution
The fourth proportional to 90,291,409.40, 135,437,114.10 and 32,785,556.60 is: 49,178,334.90
Step by Step Solution
- Step 1: Write the proportion equation
90,291,409.40 : 135,437,114.10 = 32,785,556.60 : x - Step 2: Convert to fraction form
90,291,409.40/135,437,114.10 = 32,785,556.60/x - Step 3: Cross multiply
90,291,409.40x = 135,437,114.10 × 32,785,556.60 - Step 4: Simplify right side
90,291,409.40x = 4,440,381,170,066,208 - Step 5: Solve for x
x = 4,440,381,170,066,208/90,291,409.40 - Step 6: Final answer
x = 49,178,334.90
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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.