Finding the Fourth Proportional to 7,177,597.20, 10,766,978.88 and 2,128,893.12
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Solution
The fourth proportional to 7,177,597.20, 10,766,978.88 and 2,128,893.12 is: 3,193,512.62
Step by Step Solution
- Step 1: Write the proportion equation
7,177,597.20 : 10,766,978.88 = 2,128,893.12 : x - Step 2: Convert to fraction form
7,177,597.20/10,766,978.88 = 2,128,893.12/x - Step 3: Cross multiply
7,177,597.20x = 10,766,978.88 × 2,128,893.12 - Step 4: Simplify right side
7,177,597.20x = 22,921,747,260,817.31 - Step 5: Solve for x
x = 22,921,747,260,817.31/7,177,597.20 - Step 6: Final answer
x = 3,193,512.62
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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.