Finding the Fourth Proportional to 77,040,207.70, 115,560,311.55 and 25,905,231.70
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Solution
The fourth proportional to 77,040,207.70, 115,560,311.55 and 25,905,231.70 is: 38,857,847.55
Step by Step Solution
- Step 1: Write the proportion equation
77,040,207.70 : 115,560,311.55 = 25,905,231.70 : x - Step 2: Convert to fraction form
77,040,207.70/115,560,311.55 = 25,905,231.70/x - Step 3: Cross multiply
77,040,207.70x = 115,560,311.55 × 25,905,231.70 - Step 4: Simplify right side
77,040,207.70x = 2,993,616,646,026,936 - Step 5: Solve for x
x = 2,993,616,646,026,936/77,040,207.70 - Step 6: Final answer
x = 38,857,847.55
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1.5x scale
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.