Finding the Fourth Proportional to 9,163,437.21, 12,644,805.90 and 5,296,208.85
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Solution
The fourth proportional to 9,163,437.21, 12,644,805.90 and 5,296,208.85 is: 7,308,341.99
Step by Step Solution
- Step 1: Write the proportion equation
9,163,437.21 : 12,644,805.90 = 5,296,208.85 : x - Step 2: Convert to fraction form
9,163,437.21/12,644,805.90 = 5,296,208.85/x - Step 3: Cross multiply
9,163,437.21x = 12,644,805.90 × 5,296,208.85 - Step 4: Simplify right side
9,163,437.21x = 66,969,532,914,112.21 - Step 5: Solve for x
x = 66,969,532,914,112.21/9,163,437.21 - Step 6: Final answer
x = 7,308,341.99
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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.