Finding the Fourth Proportional to 71,001,046.20, 106,512,212.70 and 30,060,406.20
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Solution
The fourth proportional to 71,001,046.20, 106,512,212.70 and 30,060,406.20 is: 45,095,115.50
Step by Step Solution
- Step 1: Write the proportion equation
71,001,046.20 : 106,512,212.70 = 30,060,406.20 : x - Step 2: Convert to fraction form
71,001,046.20/106,512,212.70 = 30,060,406.20/x - Step 3: Cross multiply
71,001,046.20x = 106,512,212.70 × 30,060,406.20 - Step 4: Simplify right side
71,001,046.20x = 3,201,800,379,022,799 - Step 5: Solve for x
x = 3,201,800,379,022,799/71,001,046.20 - Step 6: Final answer
x = 45,095,115.50
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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.