Finding the Fourth Proportional to 6,489,981.49, 8,958,932.12 and 4,043,801.13
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Solution
The fourth proportional to 6,489,981.49, 8,958,932.12 and 4,043,801.13 is: 5,582,163.82
Step by Step Solution
- Step 1: Write the proportion equation
6,489,981.49 : 8,958,932.12 = 4,043,801.13 : x - Step 2: Convert to fraction form
6,489,981.49/8,958,932.12 = 4,043,801.13/x - Step 3: Cross multiply
6,489,981.49x = 8,958,932.12 × 4,043,801.13 - Step 4: Simplify right side
6,489,981.49x = 36,228,139,840,558.80 - Step 5: Solve for x
x = 36,228,139,840,558.80/6,489,981.49 - Step 6: Final answer
x = 5,582,163.82
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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.