Finding the Fourth Proportional to 5,153,224.38, 7,112,324.78 and 2,979,028.05
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Solution
The fourth proportional to 5,153,224.38, 7,112,324.78 and 2,979,028.05 is: 4,111,564.62
Step by Step Solution
- Step 1: Write the proportion equation
5,153,224.38 : 7,112,324.78 = 2,979,028.05 : x - Step 2: Convert to fraction form
5,153,224.38/7,112,324.78 = 2,979,028.05/x - Step 3: Cross multiply
5,153,224.38x = 7,112,324.78 × 2,979,028.05 - Step 4: Simplify right side
5,153,224.38x = 21,187,815,020,330.08 - Step 5: Solve for x
x = 21,187,815,020,330.08/5,153,224.38 - Step 6: Final answer
x = 4,111,564.62
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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.