Finding the Fourth Proportional to 128,149,715.70, 192,177,334.35 and 63,432,011.70
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Solution
The fourth proportional to 128,149,715.70, 192,177,334.35 and 63,432,011.70 is: 95,124,634.92
Step by Step Solution
- Step 1: Write the proportion equation
128,149,715.70 : 192,177,334.35 = 63,432,011.70 : x - Step 2: Convert to fraction form
128,149,715.70/192,177,334.35 = 63,432,011.70/x - Step 3: Cross multiply
128,149,715.70x = 192,177,334.35 × 63,432,011.70 - Step 4: Simplify right side
128,149,715.70x = 12,190,194,920,964,012 - Step 5: Solve for x
x = 12,190,194,920,964,012/128,149,715.70 - Step 6: Final answer
x = 95,124,634.92
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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.