Finding the Fourth Proportional to 13,296,280.16, 18,350,324.64 and 7,715,756
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Solution
The fourth proportional to 13,296,280.16, 18,350,324.64 and 7,715,756 is: 10,648,589.36
Step by Step Solution
- Step 1: Write the proportion equation
13,296,280.16 : 18,350,324.64 = 7,715,756 : x - Step 2: Convert to fraction form
13,296,280.16/18,350,324.64 = 7,715,756/x - Step 3: Cross multiply
13,296,280.16x = 18,350,324.64 × 7,715,756 - Step 4: Simplify right side
13,296,280.16x = 141,586,627,443,027.84 - Step 5: Solve for x
x = 141,586,627,443,027.84/13,296,280.16 - Step 6: Final answer
x = 10,648,589.36
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.