Finding the Fourth Proportional to 13,500,771.44, 18,631,113.54 and 7,305,817.41
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Solution
The fourth proportional to 13,500,771.44, 18,631,113.54 and 7,305,817.41 is: 10,082,054.52
Step by Step Solution
- Step 1: Write the proportion equation
13,500,771.44 : 18,631,113.54 = 7,305,817.41 : x - Step 2: Convert to fraction form
13,500,771.44/18,631,113.54 = 7,305,817.41/x - Step 3: Cross multiply
13,500,771.44x = 18,631,113.54 × 7,305,817.41 - Step 4: Simplify right side
13,500,771.44x = 136,115,513,668,218.73 - Step 5: Solve for x
x = 136,115,513,668,218.73/13,500,771.44 - Step 6: Final answer
x = 10,082,054.52
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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.