Finding the Fourth Proportional to 68,128,212.70, 102,192,319.05 and 68,128,212.70
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Solution
The fourth proportional to 68,128,212.70, 102,192,319.05 and 68,128,212.70 is: 102,192,319.05
Step by Step Solution
- Step 1: Write the proportion equation
68,128,212.70 : 102,192,319.05 = 68,128,212.70 : x - Step 2: Convert to fraction form
68,128,212.70/102,192,319.05 = 68,128,212.70/x - Step 3: Cross multiply
68,128,212.70x = 102,192,319.05 × 68,128,212.70 - Step 4: Simplify right side
68,128,212.70x = 6,962,180,048,544,662 - Step 5: Solve for x
x = 6,962,180,048,544,662/68,128,212.70 - Step 6: Final answer
x = 102,192,319.05
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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.