Finding the Fourth Proportional to 7,559,813.80, 11,339,720.70 and 7,244,885.80
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Solution
The fourth proportional to 7,559,813.80, 11,339,720.70 and 7,244,885.80 is: 10,867,328.70
Step by Step Solution
- Step 1: Write the proportion equation
7,559,813.80 : 11,339,720.70 = 7,244,885.80 : x - Step 2: Convert to fraction form
7,559,813.80/11,339,720.70 = 7,244,885.80/x - Step 3: Cross multiply
7,559,813.80x = 11,339,720.70 × 7,244,885.80 - Step 4: Simplify right side
7,559,813.80x = 82,154,981,475,396.05 - Step 5: Solve for x
x = 82,154,981,475,396.05/7,559,813.80 - Step 6: Final answer
x = 10,867,328.70
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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.