Finding the Fourth Proportional to 12,451,445.27, 18,638,860.84 and 8,124,177.83
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Solution
The fourth proportional to 12,451,445.27, 18,638,860.84 and 8,124,177.83 is: 12,161,272.59
Step by Step Solution
- Step 1: Write the proportion equation
12,451,445.27 : 18,638,860.84 = 8,124,177.83 : x - Step 2: Convert to fraction form
12,451,445.27/18,638,860.84 = 8,124,177.83/x - Step 3: Cross multiply
12,451,445.27x = 18,638,860.84 × 8,124,177.83 - Step 4: Simplify right side
12,451,445.27x = 151,425,420,039,069.88 - Step 5: Solve for x
x = 151,425,420,039,069.88/12,451,445.27 - Step 6: Final answer
x = 12,161,272.59
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1.5x scale
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.