Finding the Fourth Proportional to 864,821,494.87, 1,297,453,454.62 and 251,405,720.62
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Solution
The fourth proportional to 864,821,494.87, 1,297,453,454.62 and 251,405,720.62 is: 377,172,887.89
Step by Step Solution
- Step 1: Write the proportion equation
864,821,494.87 : 1,297,453,454.62 = 251,405,720.62 : x - Step 2: Convert to fraction form
864,821,494.87/1,297,453,454.62 = 251,405,720.62/x - Step 3: Cross multiply
864,821,494.87x = 1,297,453,454.62 × 251,405,720.62 - Step 4: Simplify right side
864,821,494.87x = 326,187,220,729,649,536 - Step 5: Solve for x
x = 326,187,220,729,649,536/864,821,494.87 - Step 6: Final answer
x = 377,172,887.89
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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.