Finding the Fourth Proportional to 20,068,949.62, 27,695,910.30 and 11,248,562.46
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Solution
The fourth proportional to 20,068,949.62, 27,695,910.30 and 11,248,562.46 is: 15,523,442.07
Step by Step Solution
- Step 1: Write the proportion equation
20,068,949.62 : 27,695,910.30 = 11,248,562.46 : x - Step 2: Convert to fraction form
20,068,949.62/27,695,910.30 = 11,248,562.46/x - Step 3: Cross multiply
20,068,949.62x = 27,695,910.30 × 11,248,562.46 - Step 4: Simplify right side
20,068,949.62x = 311,539,176,896,107.38 - Step 5: Solve for x
x = 311,539,176,896,107.38/20,068,949.62 - Step 6: Final answer
x = 15,523,442.07
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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.