Finding the Fourth Proportional to 14,919,209.84, 20,588,479.28 and 8,392,843.84
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Solution
The fourth proportional to 14,919,209.84, 20,588,479.28 and 8,392,843.84 is: 11,582,107.45
Step by Step Solution
- Step 1: Write the proportion equation
14,919,209.84 : 20,588,479.28 = 8,392,843.84 : x - Step 2: Convert to fraction form
14,919,209.84/20,588,479.28 = 8,392,843.84/x - Step 3: Cross multiply
14,919,209.84x = 20,588,479.28 × 8,392,843.84 - Step 4: Simplify right side
14,919,209.84x = 172,795,891,500,115.66 - Step 5: Solve for x
x = 172,795,891,500,115.66/14,919,209.84 - Step 6: Final answer
x = 11,582,107.45
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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.