Finding the Fourth Proportional to 5,121,603.92, 7,067,622.92 and 2,829,715.28
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Solution
The fourth proportional to 5,121,603.92, 7,067,622.92 and 2,829,715.28 is: 3,904,901.84
Step by Step Solution
- Step 1: Write the proportion equation
5,121,603.92 : 7,067,622.92 = 2,829,715.28 : x - Step 2: Convert to fraction form
5,121,603.92/7,067,622.92 = 2,829,715.28/x - Step 3: Cross multiply
5,121,603.92x = 7,067,622.92 × 2,829,715.28 - Step 4: Simplify right side
5,121,603.92x = 19,999,360,570,002.21 - Step 5: Solve for x
x = 19,999,360,570,002.21/5,121,603.92 - Step 6: Final answer
x = 3,904,901.84
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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.