Finding the Fourth Proportional to 87,539,872.37, 120,819,720.09 and 59,269,425.44
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Solution
The fourth proportional to 87,539,872.37, 120,819,720.09 and 59,269,425.44 is: 81,801,757.27
Step by Step Solution
- Step 1: Write the proportion equation
87,539,872.37 : 120,819,720.09 = 59,269,425.44 : x - Step 2: Convert to fraction form
87,539,872.37/120,819,720.09 = 59,269,425.44/x - Step 3: Cross multiply
87,539,872.37x = 120,819,720.09 × 59,269,425.44 - Step 4: Simplify right side
87,539,872.37x = 7,160,915,390,951,827 - Step 5: Solve for x
x = 7,160,915,390,951,827/87,539,872.37 - Step 6: Final answer
x = 81,801,757.27
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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.