Finding the Fourth Proportional to 91,977,121.01, 138,023,119.19 and 61,293,230.79
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Solution
The fourth proportional to 91,977,121.01, 138,023,119.19 and 61,293,230.79 is: 91,978,122.44
Step by Step Solution
- Step 1: Write the proportion equation
91,977,121.01 : 138,023,119.19 = 61,293,230.79 : x - Step 2: Convert to fraction form
91,977,121.01/138,023,119.19 = 61,293,230.79/x - Step 3: Cross multiply
91,977,121.01x = 138,023,119.19 × 61,293,230.79 - Step 4: Simplify right side
91,977,121.01x = 8,459,882,898,503,994 - Step 5: Solve for x
x = 8,459,882,898,503,994/91,977,121.01 - Step 6: Final answer
x = 91,978,122.44
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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.