Finding the Fourth Proportional to 21,030,049.88, 29,021,508.99 and 11,610,859.08
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Solution
The fourth proportional to 21,030,049.88, 29,021,508.99 and 11,610,859.08 is: 16,023,007.70
Step by Step Solution
- Step 1: Write the proportion equation
21,030,049.88 : 29,021,508.99 = 11,610,859.08 : x - Step 2: Convert to fraction form
21,030,049.88/29,021,508.99 = 11,610,859.08/x - Step 3: Cross multiply
21,030,049.88x = 29,021,508.99 × 11,610,859.08 - Step 4: Simplify right side
21,030,049.88x = 336,964,651,171,843.12 - Step 5: Solve for x
x = 336,964,651,171,843.12/21,030,049.88 - Step 6: Final answer
x = 16,023,007.70
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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.