Finding the Fourth Proportional to 2,879,755,449.21, 4,319,633,184.45 and 809,477,211.12
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Solution
The fourth proportional to 2,879,755,449.21, 4,319,633,184.45 and 809,477,211.12 is: 1,214,215,819.66
Step by Step Solution
- Step 1: Write the proportion equation
2,879,755,449.21 : 4,319,633,184.45 = 809,477,211.12 : x - Step 2: Convert to fraction form
2,879,755,449.21/4,319,633,184.45 = 809,477,211.12/x - Step 3: Cross multiply
2,879,755,449.21x = 4,319,633,184.45 × 809,477,211.12 - Step 4: Simplify right side
2,879,755,449.21x = 3,496,644,623,190,661,632 - Step 5: Solve for x
x = 3,496,644,623,190,661,632/2,879,755,449.21 - Step 6: Final answer
x = 1,214,215,819.66
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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.