Finding the Fourth Proportional to 120,372,751.07, 166,165,247.07 and 81,267,496.14
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Solution
The fourth proportional to 120,372,751.07, 166,165,247.07 and 81,267,496.14 is: 112,183,475.54
Step by Step Solution
- Step 1: Write the proportion equation
120,372,751.07 : 166,165,247.07 = 81,267,496.14 : x - Step 2: Convert to fraction form
120,372,751.07/166,165,247.07 = 81,267,496.14/x - Step 3: Cross multiply
120,372,751.07x = 166,165,247.07 × 81,267,496.14 - Step 4: Simplify right side
120,372,751.07x = 13,503,833,574,863,370 - Step 5: Solve for x
x = 13,503,833,574,863,370/120,372,751.07 - Step 6: Final answer
x = 112,183,475.54
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1.5x scale
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.