Finding the Fourth Proportional to 8,979,079.20, 13,468,618.80 and 6,286,444.80
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Solution
The fourth proportional to 8,979,079.20, 13,468,618.80 and 6,286,444.80 is: 9,429,667.20
Step by Step Solution
- Step 1: Write the proportion equation
8,979,079.20 : 13,468,618.80 = 6,286,444.80 : x - Step 2: Convert to fraction form
8,979,079.20/13,468,618.80 = 6,286,444.80/x - Step 3: Cross multiply
8,979,079.20x = 13,468,618.80 × 6,286,444.80 - Step 4: Simplify right side
8,979,079.20x = 84,669,728,618,442.23 - Step 5: Solve for x
x = 84,669,728,618,442.23/8,979,079.20 - Step 6: Final answer
x = 9,429,667.20
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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.