Finding the Fourth Proportional to 6,346,197.20, 8,757,815.22 and 3,445,611.92
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Solution
The fourth proportional to 6,346,197.20, 8,757,815.22 and 3,445,611.92 is: 4,754,978.70
Step by Step Solution
- Step 1: Write the proportion equation
6,346,197.20 : 8,757,815.22 = 3,445,611.92 : x - Step 2: Convert to fraction form
6,346,197.20/8,757,815.22 = 3,445,611.92/x - Step 3: Cross multiply
6,346,197.20x = 8,757,815.22 × 3,445,611.92 - Step 4: Simplify right side
6,346,197.20x = 30,176,032,515,189.43 - Step 5: Solve for x
x = 30,176,032,515,189.43/6,346,197.20 - Step 6: Final answer
x = 4,754,978.70
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1.5x scale
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.