Finding the Fourth Proportional to 125,491,441.20, 173,182,389.30 and 69,739,211.48
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Solution
The fourth proportional to 125,491,441.20, 173,182,389.30 and 69,739,211.48 is: 96,242,446.14
Step by Step Solution
- Step 1: Write the proportion equation
125,491,441.20 : 173,182,389.30 = 69,739,211.48 : x - Step 2: Convert to fraction form
125,491,441.20/173,182,389.30 = 69,739,211.48/x - Step 3: Cross multiply
125,491,441.20x = 173,182,389.30 × 69,739,211.48 - Step 4: Simplify right side
125,491,441.20x = 12,077,603,271,138,478 - Step 5: Solve for x
x = 12,077,603,271,138,478/125,491,441.20 - Step 6: Final answer
x = 96,242,446.14
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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.