Finding the Fourth Proportional to 13,082,786.70, 19,624,180.05 and 7,110,818.70
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Solution
The fourth proportional to 13,082,786.70, 19,624,180.05 and 7,110,818.70 is: 10,666,228.05
Step by Step Solution
- Step 1: Write the proportion equation
13,082,786.70 : 19,624,180.05 = 7,110,818.70 : x - Step 2: Convert to fraction form
13,082,786.70/19,624,180.05 = 7,110,818.70/x - Step 3: Cross multiply
13,082,786.70x = 19,624,180.05 × 7,110,818.70 - Step 4: Simplify right side
13,082,786.70x = 139,543,986,471,706.94 - Step 5: Solve for x
x = 139,543,986,471,706.94/13,082,786.70 - Step 6: Final answer
x = 10,666,228.05
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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.