Finding the Fourth Proportional to 505,512,960.60, 758,269,440.90 and 214,330,531.80
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Solution
The fourth proportional to 505,512,960.60, 758,269,440.90 and 214,330,531.80 is: 321,495,797.70
Step by Step Solution
- Step 1: Write the proportion equation
505,512,960.60 : 758,269,440.90 = 214,330,531.80 : x - Step 2: Convert to fraction form
505,512,960.60/758,269,440.90 = 214,330,531.80/x - Step 3: Cross multiply
505,512,960.60x = 758,269,440.90 × 214,330,531.80 - Step 4: Simplify right side
505,512,960.60x = 162,520,292,515,785,664 - Step 5: Solve for x
x = 162,520,292,515,785,664/505,512,960.60 - Step 6: Final answer
x = 321,495,797.70
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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.