Finding the Fourth Proportional to 18,451,191.30, 27,692,533.35 and 8,231,777.70
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Solution
The fourth proportional to 18,451,191.30, 27,692,533.35 and 8,231,777.70 is: 12,354,691.62
Step by Step Solution
- Step 1: Write the proportion equation
18,451,191.30 : 27,692,533.35 = 8,231,777.70 : x - Step 2: Convert to fraction form
18,451,191.30/27,692,533.35 = 8,231,777.70/x - Step 3: Cross multiply
18,451,191.30x = 27,692,533.35 × 8,231,777.70 - Step 4: Simplify right side
18,451,191.30x = 227,958,778,487,036.31 - Step 5: Solve for x
x = 227,958,778,487,036.31/18,451,191.30 - Step 6: Final answer
x = 12,354,691.62
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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.