Finding the Fourth Proportional to 7,179,091.20, 10,754,121.60 and 4,475,116.80
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Solution
The fourth proportional to 7,179,091.20, 10,754,121.60 and 4,475,116.80 is: 6,703,627.09
Step by Step Solution
- Step 1: Write the proportion equation
7,179,091.20 : 10,754,121.60 = 4,475,116.80 : x - Step 2: Convert to fraction form
7,179,091.20/10,754,121.60 = 4,475,116.80/x - Step 3: Cross multiply
7,179,091.20x = 10,754,121.60 × 4,475,116.80 - Step 4: Simplify right side
7,179,091.20x = 48,125,950,241,402.88 - Step 5: Solve for x
x = 48,125,950,241,402.88/7,179,091.20 - Step 6: Final answer
x = 6,703,627.09
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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.