Finding the Fourth Proportional to 11,198,612.49, 15,445,834.46 and 8,445,415.97
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Solution
The fourth proportional to 11,198,612.49, 15,445,834.46 and 8,445,415.97 is: 11,648,451.72
Step by Step Solution
- Step 1: Write the proportion equation
11,198,612.49 : 15,445,834.46 = 8,445,415.97 : x - Step 2: Convert to fraction form
11,198,612.49/15,445,834.46 = 8,445,415.97/x - Step 3: Cross multiply
11,198,612.49x = 15,445,834.46 × 8,445,415.97 - Step 4: Simplify right side
11,198,612.49x = 130,446,496,899,004.08 - Step 5: Solve for x
x = 130,446,496,899,004.08/11,198,612.49 - Step 6: Final answer
x = 11,648,451.72
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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.