Finding the Fourth Proportional to 20,151,103.95, 27,808,530.93 and 11,449,287.99
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Solution
The fourth proportional to 20,151,103.95, 27,808,530.93 and 11,449,287.99 is: 15,800,021.68
Step by Step Solution
- Step 1: Write the proportion equation
20,151,103.95 : 27,808,530.93 = 11,449,287.99 : x - Step 2: Convert to fraction form
20,151,103.95/27,808,530.93 = 11,449,287.99/x - Step 3: Cross multiply
20,151,103.95x = 27,808,530.93 × 11,449,287.99 - Step 4: Simplify right side
20,151,103.95x = 318,387,879,196,392.56 - Step 5: Solve for x
x = 318,387,879,196,392.56/20,151,103.95 - Step 6: Final answer
x = 15,800,021.68
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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.