Finding the Fourth Proportional to 80,444,243.14, 120,665,783.30 and 53,272,163.28
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Solution
The fourth proportional to 80,444,243.14, 120,665,783.30 and 53,272,163.28 is: 79,907,859.90
Step by Step Solution
- Step 1: Write the proportion equation
80,444,243.14 : 120,665,783.30 = 53,272,163.28 : x - Step 2: Convert to fraction form
80,444,243.14/120,665,783.30 = 53,272,163.28/x - Step 3: Cross multiply
80,444,243.14x = 120,665,783.30 × 53,272,163.28 - Step 4: Simplify right side
80,444,243.14x = 6,428,127,310,266,697 - Step 5: Solve for x
x = 6,428,127,310,266,697/80,444,243.14 - Step 6: Final answer
x = 79,907,859.90
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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.