Finding the Fourth Proportional to 214,432,127.94, 321,784,235.16 and 91,611,370.70
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Solution
The fourth proportional to 214,432,127.94, 321,784,235.16 and 91,611,370.70 is: 137,475,177.50
Step by Step Solution
- Step 1: Write the proportion equation
214,432,127.94 : 321,784,235.16 = 91,611,370.70 : x - Step 2: Convert to fraction form
214,432,127.94/321,784,235.16 = 91,611,370.70/x - Step 3: Cross multiply
214,432,127.94x = 321,784,235.16 × 91,611,370.70 - Step 4: Simplify right side
214,432,127.94x = 29,479,094,850,591,752 - Step 5: Solve for x
x = 29,479,094,850,591,752/214,432,127.94 - Step 6: Final answer
x = 137,475,177.50
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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.