Finding the Fourth Proportional to 2,165,331,553.07, 2,988,159,754.73 and 1,175,257,174.19
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Solution
The fourth proportional to 2,165,331,553.07, 2,988,159,754.73 and 1,175,257,174.19 is: 1,621,856,100.69
Step by Step Solution
- Step 1: Write the proportion equation
2,165,331,553.07 : 2,988,159,754.73 = 1,175,257,174.19 : x - Step 2: Convert to fraction form
2,165,331,553.07/2,988,159,754.73 = 1,175,257,174.19/x - Step 3: Cross multiply
2,165,331,553.07x = 2,988,159,754.73 × 1,175,257,174.19 - Step 4: Simplify right side
2,165,331,553.07x = 3,511,856,189,372,263,424 - Step 5: Solve for x
x = 3,511,856,189,372,263,424/2,165,331,553.07 - Step 6: Final answer
x = 1,621,856,100.69
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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.