Finding the Fourth Proportional to 212,485,299,716.04, 318,783,853,131.84 and 76,361,176,175.64
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Solution
The fourth proportional to 212,485,299,716.04, 318,783,853,131.84 and 76,361,176,175.64 is: 114,561,854,412.90
Step by Step Solution
- Step 1: Write the proportion equation
212,485,299,716.04 : 318,783,853,131.84 = 76,361,176,175.64 : x - Step 2: Convert to fraction form
212,485,299,716.04/318,783,853,131.84 = 76,361,176,175.64/x - Step 3: Cross multiply
212,485,299,716.04x = 318,783,853,131.84 × 76,361,176,175.64 - Step 4: Simplify right side
212,485,299,716.04x = 24,342,709,970,949,782,896,640 - Step 5: Solve for x
x = 24,342,709,970,949,782,896,640/212,485,299,716.04 - Step 6: Final answer
x = 114,561,854,412.90
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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.