Finding the Fourth Proportional to 20,147,662.93, 27,803,868.57 and 11,446,312.99
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Solution
The fourth proportional to 20,147,662.93, 27,803,868.57 and 11,446,312.99 is: 15,795,965.17
Step by Step Solution
- Step 1: Write the proportion equation
20,147,662.93 : 27,803,868.57 = 11,446,312.99 : x - Step 2: Convert to fraction form
20,147,662.93/27,803,868.57 = 11,446,312.99/x - Step 3: Cross multiply
20,147,662.93x = 27,803,868.57 × 11,446,312.99 - Step 4: Simplify right side
20,147,662.93x = 318,251,781,985,043.75 - Step 5: Solve for x
x = 318,251,781,985,043.75/20,147,662.93 - Step 6: Final answer
x = 15,795,965.17
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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.