Finding the Fourth Proportional to 139,970,234.20, 209,955,351.30 and 110,744,915.80
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Solution
The fourth proportional to 139,970,234.20, 209,955,351.30 and 110,744,915.80 is: 166,117,373.70
Step by Step Solution
- Step 1: Write the proportion equation
139,970,234.20 : 209,955,351.30 = 110,744,915.80 : x - Step 2: Convert to fraction form
139,970,234.20/209,955,351.30 = 110,744,915.80/x - Step 3: Cross multiply
139,970,234.20x = 209,955,351.30 × 110,744,915.80 - Step 4: Simplify right side
139,970,234.20x = 23,251,487,701,477,920 - Step 5: Solve for x
x = 23,251,487,701,477,920/139,970,234.20 - Step 6: Final answer
x = 166,117,373.70
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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.