Finding the Fourth Proportional to 76,979,554.10, 115,486,564.73 and 25,860,178.70
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Solution
The fourth proportional to 76,979,554.10, 115,486,564.73 and 25,860,178.70 is: 38,796,057.42
Step by Step Solution
- Step 1: Write the proportion equation
76,979,554.10 : 115,486,564.73 = 25,860,178.70 : x - Step 2: Convert to fraction form
76,979,554.10/115,486,564.73 = 25,860,178.70/x - Step 3: Cross multiply
76,979,554.10x = 115,486,564.73 × 25,860,178.70 - Step 4: Simplify right side
76,979,554.10x = 2,986,503,200,660,183.50 - Step 5: Solve for x
x = 2,986,503,200,660,183.50/76,979,554.10 - Step 6: Final answer
x = 38,796,057.42
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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.