Finding the Fourth Proportional to 14,474,618.38, 19,975,320.39 and 7,859,485.63
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Solution
The fourth proportional to 14,474,618.38, 19,975,320.39 and 7,859,485.63 is: 10,846,278.60
Step by Step Solution
- Step 1: Write the proportion equation
14,474,618.38 : 19,975,320.39 = 7,859,485.63 : x - Step 2: Convert to fraction form
14,474,618.38/19,975,320.39 = 7,859,485.63/x - Step 3: Cross multiply
14,474,618.38x = 19,975,320.39 × 7,859,485.63 - Step 4: Simplify right side
14,474,618.38x = 156,995,743,559,851 - Step 5: Solve for x
x = 156,995,743,559,851/14,474,618.38 - Step 6: Final answer
x = 10,846,278.60
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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.