Finding the Fourth Proportional to 5,121,766.59, 7,068,023.39 and 2,829,910.95
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Solution
The fourth proportional to 5,121,766.59, 7,068,023.39 and 2,829,910.95 is: 3,905,269.09
Step by Step Solution
- Step 1: Write the proportion equation
5,121,766.59 : 7,068,023.39 = 2,829,910.95 : x - Step 2: Convert to fraction form
5,121,766.59/7,068,023.39 = 2,829,910.95/x - Step 3: Cross multiply
5,121,766.59x = 7,068,023.39 × 2,829,910.95 - Step 4: Simplify right side
5,121,766.59x = 20,001,876,772,067.57 - Step 5: Solve for x
x = 20,001,876,772,067.57/5,121,766.59 - Step 6: Final answer
x = 3,905,269.09
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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.