Finding the Fourth Proportional to 19,929,855.42, 29,894,783.58 and 4,783,786.92
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Solution
The fourth proportional to 19,929,855.42, 29,894,783.58 and 4,783,786.92 is: 7,175,680.49
Step by Step Solution
- Step 1: Write the proportion equation
19,929,855.42 : 29,894,783.58 = 4,783,786.92 : x - Step 2: Convert to fraction form
19,929,855.42/29,894,783.58 = 4,783,786.92/x - Step 3: Cross multiply
19,929,855.42x = 29,894,783.58 × 4,783,786.92 - Step 4: Simplify right side
19,929,855.42x = 143,010,274,666,234.75 - Step 5: Solve for x
x = 143,010,274,666,234.75/19,929,855.42 - Step 6: Final answer
x = 7,175,680.49
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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.