Finding the Fourth Proportional to 125,491,442.20, 173,182,390.68 and 69,739,212.48
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Solution
The fourth proportional to 125,491,442.20, 173,182,390.68 and 69,739,212.48 is: 96,242,447.53
Step by Step Solution
- Step 1: Write the proportion equation
125,491,442.20 : 173,182,390.68 = 69,739,212.48 : x - Step 2: Convert to fraction form
125,491,442.20/173,182,390.68 = 69,739,212.48/x - Step 3: Cross multiply
125,491,442.20x = 173,182,390.68 × 69,739,212.48 - Step 4: Simplify right side
125,491,442.20x = 12,077,603,541,426,892 - Step 5: Solve for x
x = 12,077,603,541,426,892/125,491,442.20 - Step 6: Final answer
x = 96,242,447.53
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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.