Finding the Fourth Proportional to 100,102,626.10, 149,860,006.35 and 74,656,443.70
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Solution
The fourth proportional to 100,102,626.10, 149,860,006.35 and 74,656,443.70 is: 111,765,450.75
Step by Step Solution
- Step 1: Write the proportion equation
100,102,626.10 : 149,860,006.35 = 74,656,443.70 : x - Step 2: Convert to fraction form
100,102,626.10/149,860,006.35 = 74,656,443.70/x - Step 3: Cross multiply
100,102,626.10x = 149,860,006.35 × 74,656,443.70 - Step 4: Simplify right side
100,102,626.10x = 11,188,015,126,950,418 - Step 5: Solve for x
x = 11,188,015,126,950,418/100,102,626.10 - Step 6: Final answer
x = 111,765,450.75
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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.