Finding the Fourth Proportional to 8,474,416.30, 12,711,624.45 and 4,493,104.30
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Solution
The fourth proportional to 8,474,416.30, 12,711,624.45 and 4,493,104.30 is: 6,739,656.45
Step by Step Solution
- Step 1: Write the proportion equation
8,474,416.30 : 12,711,624.45 = 4,493,104.30 : x - Step 2: Convert to fraction form
8,474,416.30/12,711,624.45 = 4,493,104.30/x - Step 3: Cross multiply
8,474,416.30x = 12,711,624.45 × 4,493,104.30 - Step 4: Simplify right side
8,474,416.30x = 57,114,654,476,280.13 - Step 5: Solve for x
x = 57,114,654,476,280.13/8,474,416.30 - Step 6: Final answer
x = 6,739,656.45
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Double scale
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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.