Finding the Fourth Proportional to 11,669,116.36, 16,107,793.88 and 8,776,859.44
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Solution
The fourth proportional to 11,669,116.36, 16,107,793.88 and 8,776,859.44 is: 12,115,385.47
Step by Step Solution
- Step 1: Write the proportion equation
11,669,116.36 : 16,107,793.88 = 8,776,859.44 : x - Step 2: Convert to fraction form
11,669,116.36/16,107,793.88 = 8,776,859.44/x - Step 3: Cross multiply
11,669,116.36x = 16,107,793.88 × 8,776,859.44 - Step 4: Simplify right side
11,669,116.36x = 141,375,842,773,252.22 - Step 5: Solve for x
x = 141,375,842,773,252.22/11,669,116.36 - Step 6: Final answer
x = 12,115,385.47
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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.