Finding the Fourth Proportional to 198,153,577.80, 297,230,366.70 and 68,747,694.30
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Solution
The fourth proportional to 198,153,577.80, 297,230,366.70 and 68,747,694.30 is: 103,121,541.45
Step by Step Solution
- Step 1: Write the proportion equation
198,153,577.80 : 297,230,366.70 = 68,747,694.30 : x - Step 2: Convert to fraction form
198,153,577.80/297,230,366.70 = 68,747,694.30/x - Step 3: Cross multiply
198,153,577.80x = 297,230,366.70 × 68,747,694.30 - Step 4: Simplify right side
198,153,577.80x = 20,433,902,386,568,500 - Step 5: Solve for x
x = 20,433,902,386,568,500/198,153,577.80 - Step 6: Final answer
x = 103,121,541.45
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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.