Finding the Fourth Proportional to 7,242,553.20, 10,863,829.80 and 2,193,863.70
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Solution
The fourth proportional to 7,242,553.20, 10,863,829.80 and 2,193,863.70 is: 3,290,795.55
Step by Step Solution
- Step 1: Write the proportion equation
7,242,553.20 : 10,863,829.80 = 2,193,863.70 : x - Step 2: Convert to fraction form
7,242,553.20/10,863,829.80 = 2,193,863.70/x - Step 3: Cross multiply
7,242,553.20x = 10,863,829.80 × 2,193,863.70 - Step 4: Simplify right side
7,242,553.20x = 23,833,761,841,198.26 - Step 5: Solve for x
x = 23,833,761,841,198.26/7,242,553.20 - Step 6: Final answer
x = 3,290,795.55
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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.