Finding the Fourth Proportional to 11,783,920.55, 16,261,653.75 and 6,627,281.90
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Solution
The fourth proportional to 11,783,920.55, 16,261,653.75 and 6,627,281.90 is: 9,145,560.95
Step by Step Solution
- Step 1: Write the proportion equation
11,783,920.55 : 16,261,653.75 = 6,627,281.90 : x - Step 2: Convert to fraction form
11,783,920.55/16,261,653.75 = 6,627,281.90/x - Step 3: Cross multiply
11,783,920.55x = 16,261,653.75 × 6,627,281.90 - Step 4: Simplify right side
11,783,920.55x = 107,770,563,561,442.12 - Step 5: Solve for x
x = 107,770,563,561,442.12/11,783,920.55 - Step 6: Final answer
x = 9,145,560.95
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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.