Finding the Fourth Proportional to 120,077,575.55, 165,707,195.97 and 65,073,432.05
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Solution
The fourth proportional to 120,077,575.55, 165,707,195.97 and 65,073,432.05 is: 89,801,413.03
Step by Step Solution
- Step 1: Write the proportion equation
120,077,575.55 : 165,707,195.97 = 65,073,432.05 : x - Step 2: Convert to fraction form
120,077,575.55/165,707,195.97 = 65,073,432.05/x - Step 3: Cross multiply
120,077,575.55x = 165,707,195.97 × 65,073,432.05 - Step 4: Simplify right side
120,077,575.55x = 10,783,135,957,149,828 - Step 5: Solve for x
x = 10,783,135,957,149,828/120,077,575.55 - Step 6: Final answer
x = 89,801,413.03
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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.