Finding the Fourth Proportional to 19,895,242.76, 29,842,861.60 and 5,518,310.46
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Solution
The fourth proportional to 19,895,242.76, 29,842,861.60 and 5,518,310.46 is: 8,277,464.99
Step by Step Solution
- Step 1: Write the proportion equation
19,895,242.76 : 29,842,861.60 = 5,518,310.46 : x - Step 2: Convert to fraction form
19,895,242.76/29,842,861.60 = 5,518,310.46/x - Step 3: Cross multiply
19,895,242.76x = 29,842,861.60 × 5,518,310.46 - Step 4: Simplify right side
19,895,242.76x = 164,682,175,296,020.78 - Step 5: Solve for x
x = 164,682,175,296,020.78/19,895,242.76 - Step 6: Final answer
x = 8,277,464.99
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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.