Finding the Fourth Proportional to 8,065,910.70, 12,098,866.05 and 6,239,328.30
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Solution
The fourth proportional to 8,065,910.70, 12,098,866.05 and 6,239,328.30 is: 9,358,992.45
Step by Step Solution
- Step 1: Write the proportion equation
8,065,910.70 : 12,098,866.05 = 6,239,328.30 : x - Step 2: Convert to fraction form
8,065,910.70/12,098,866.05 = 6,239,328.30/x - Step 3: Cross multiply
8,065,910.70x = 12,098,866.05 × 6,239,328.30 - Step 4: Simplify right side
8,065,910.70x = 75,488,797,343,674.22 - Step 5: Solve for x
x = 75,488,797,343,674.22/8,065,910.70 - Step 6: Final answer
x = 9,358,992.45
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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.