Finding the Fourth Proportional to 5,147,477.10, 7,721,273.97 and 1,553,278.68
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Solution
The fourth proportional to 5,147,477.10, 7,721,273.97 and 1,553,278.68 is: 2,329,935.62
Step by Step Solution
- Step 1: Write the proportion equation
5,147,477.10 : 7,721,273.97 = 1,553,278.68 : x - Step 2: Convert to fraction form
5,147,477.10/7,721,273.97 = 1,553,278.68/x - Step 3: Cross multiply
5,147,477.10x = 7,721,273.97 × 1,553,278.68 - Step 4: Simplify right side
5,147,477.10x = 11,993,290,240,039.96 - Step 5: Solve for x
x = 11,993,290,240,039.96/5,147,477.10 - Step 6: Final answer
x = 2,329,935.62
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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.