Finding the Fourth Proportional to 21,568,205.13, 29,764,359.93 and 11,778,937.30
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Solution
The fourth proportional to 21,568,205.13, 29,764,359.93 and 11,778,937.30 is: 16,255,062.82
Step by Step Solution
- Step 1: Write the proportion equation
21,568,205.13 : 29,764,359.93 = 11,778,937.30 : x - Step 2: Convert to fraction form
21,568,205.13/29,764,359.93 = 11,778,937.30/x - Step 3: Cross multiply
21,568,205.13x = 29,764,359.93 × 11,778,937.30 - Step 4: Simplify right side
21,568,205.13x = 350,592,529,390,102.44 - Step 5: Solve for x
x = 350,592,529,390,102.44/21,568,205.13 - Step 6: Final answer
x = 16,255,062.82
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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.