Finding the Fourth Proportional to 25,549,791.70, 38,324,689.08 and 20,408,148.42
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Solution
The fourth proportional to 25,549,791.70, 38,324,689.08 and 20,408,148.42 is: 30,612,223.85
Step by Step Solution
- Step 1: Write the proportion equation
25,549,791.70 : 38,324,689.08 = 20,408,148.42 : x - Step 2: Convert to fraction form
25,549,791.70/38,324,689.08 = 20,408,148.42/x - Step 3: Cross multiply
25,549,791.70x = 38,324,689.08 × 20,408,148.42 - Step 4: Simplify right side
25,549,791.70x = 782,135,942,894,993.25 - Step 5: Solve for x
x = 782,135,942,894,993.25/25,549,791.70 - Step 6: Final answer
x = 30,612,223.85
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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.