Finding the Fourth Proportional to 8,193,774.30, 12,290,661.45 and 3,942,246.30
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Solution
The fourth proportional to 8,193,774.30, 12,290,661.45 and 3,942,246.30 is: 5,913,369.45
Step by Step Solution
- Step 1: Write the proportion equation
8,193,774.30 : 12,290,661.45 = 3,942,246.30 : x - Step 2: Convert to fraction form
8,193,774.30/12,290,661.45 = 3,942,246.30/x - Step 3: Cross multiply
8,193,774.30x = 12,290,661.45 × 3,942,246.30 - Step 4: Simplify right side
8,193,774.30x = 48,452,814,625,815.13 - Step 5: Solve for x
x = 48,452,814,625,815.13/8,193,774.30 - Step 6: Final answer
x = 5,913,369.45
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Double scale
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Similar ratio
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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.