Finding the Fourth Proportional to 80,757,139.60, 121,135,709.40 and 32,242,481.20
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Solution
The fourth proportional to 80,757,139.60, 121,135,709.40 and 32,242,481.20 is: 48,363,721.80
Step by Step Solution
- Step 1: Write the proportion equation
80,757,139.60 : 121,135,709.40 = 32,242,481.20 : x - Step 2: Convert to fraction form
80,757,139.60/121,135,709.40 = 32,242,481.20/x - Step 3: Cross multiply
80,757,139.60x = 121,135,709.40 × 32,242,481.20 - Step 4: Simplify right side
80,757,139.60x = 3,905,715,832,978,163.50 - Step 5: Solve for x
x = 3,905,715,832,978,163.50/80,757,139.60 - Step 6: Final answer
x = 48,363,721.80
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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.