Finding the Fourth Proportional to 21,469,649.05, 29,627,440.63 and 11,679,842.44
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Solution
The fourth proportional to 21,469,649.05, 29,627,440.63 and 11,679,842.44 is: 16,117,815.32
Step by Step Solution
- Step 1: Write the proportion equation
21,469,649.05 : 29,627,440.63 = 11,679,842.44 : x - Step 2: Convert to fraction form
21,469,649.05/29,627,440.63 = 11,679,842.44/x - Step 3: Cross multiply
21,469,649.05x = 29,627,440.63 × 11,679,842.44 - Step 4: Simplify right side
21,469,649.05x = 346,043,838,458,854.31 - Step 5: Solve for x
x = 346,043,838,458,854.31/21,469,649.05 - Step 6: Final answer
x = 16,117,815.32
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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.