Finding the Fourth Proportional to 16,535,917.68, 22,820,844.38 and 9,920,755.09
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Solution
The fourth proportional to 16,535,917.68, 22,820,844.38 and 9,920,755.09 is: 13,691,408.75
Step by Step Solution
- Step 1: Write the proportion equation
16,535,917.68 : 22,820,844.38 = 9,920,755.09 : x - Step 2: Convert to fraction form
16,535,917.68/22,820,844.38 = 9,920,755.09/x - Step 3: Cross multiply
16,535,917.68x = 22,820,844.38 × 9,920,755.09 - Step 4: Simplify right side
16,535,917.68x = 226,400,007,969,319.91 - Step 5: Solve for x
x = 226,400,007,969,319.91/16,535,917.68 - Step 6: Final answer
x = 13,691,408.75
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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.