Finding the Fourth Proportional to 5,121,468.46, 7,067,909.97 and 2,829,579.94
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Solution
The fourth proportional to 5,121,468.46, 7,067,909.97 and 2,829,579.94 is: 3,904,976.95
Step by Step Solution
- Step 1: Write the proportion equation
5,121,468.46 : 7,067,909.97 = 2,829,579.94 : x - Step 2: Convert to fraction form
5,121,468.46/7,067,909.97 = 2,829,579.94/x - Step 3: Cross multiply
5,121,468.46x = 7,067,909.97 × 2,829,579.94 - Step 4: Simplify right side
5,121,468.46x = 19,999,216,268,838 - Step 5: Solve for x
x = 19,999,216,268,838/5,121,468.46 - Step 6: Final answer
x = 3,904,976.95
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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.