Finding the Fourth Proportional to 20,453,248.20, 30,679,907.16 and 16,380,472.62
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Solution
The fourth proportional to 20,453,248.20, 30,679,907.16 and 16,380,472.62 is: 24,570,736.85
Step by Step Solution
- Step 1: Write the proportion equation
20,453,248.20 : 30,679,907.16 = 16,380,472.62 : x - Step 2: Convert to fraction form
20,453,248.20/30,679,907.16 = 16,380,472.62/x - Step 3: Cross multiply
20,453,248.20x = 30,679,907.16 × 16,380,472.62 - Step 4: Simplify right side
20,453,248.20x = 502,551,379,218,521.94 - Step 5: Solve for x
x = 502,551,379,218,521.94/20,453,248.20 - Step 6: Final answer
x = 24,570,736.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.