Finding the Fourth Proportional to 1,120,246,553.17, 1,544,503,112.08 and 918,560,343.97
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Solution
The fourth proportional to 1,120,246,553.17, 1,544,503,112.08 and 918,560,343.97 is: 1,266,434,880.68
Step by Step Solution
- Step 1: Write the proportion equation
1,120,246,553.17 : 1,544,503,112.08 = 918,560,343.97 : x - Step 2: Convert to fraction form
1,120,246,553.17/1,544,503,112.08 = 918,560,343.97/x - Step 3: Cross multiply
1,120,246,553.17x = 1,544,503,112.08 × 918,560,343.97 - Step 4: Simplify right side
1,120,246,553.17x = 1,418,719,309,894,940,160 - Step 5: Solve for x
x = 1,418,719,309,894,940,160/1,120,246,553.17 - Step 6: Final answer
x = 1,266,434,880.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.