Finding the Fourth Proportional to 1,212,366,981.80, 1,815,149,250.30 and 1,178,354,757.80
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Solution
The fourth proportional to 1,212,366,981.80, 1,815,149,250.30 and 1,178,354,757.80 is: 1,764,226,333.54
Step by Step Solution
- Step 1: Write the proportion equation
1,212,366,981.80 : 1,815,149,250.30 = 1,178,354,757.80 : x - Step 2: Convert to fraction form
1,212,366,981.80/1,815,149,250.30 = 1,178,354,757.80/x - Step 3: Cross multiply
1,212,366,981.80x = 1,815,149,250.30 × 1,178,354,757.80 - Step 4: Simplify right side
1,212,366,981.80x = 2,138,889,755,208,108,032 - Step 5: Solve for x
x = 2,138,889,755,208,108,032/1,212,366,981.80 - Step 6: Final answer
x = 1,764,226,333.54
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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.