Finding the Fourth Proportional to 13,147,277.43, 18,143,204.51 and 7,346,063.70
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Solution
The fourth proportional to 13,147,277.43, 18,143,204.51 and 7,346,063.70 is: 10,137,546.48
Step by Step Solution
- Step 1: Write the proportion equation
13,147,277.43 : 18,143,204.51 = 7,346,063.70 : x - Step 2: Convert to fraction form
13,147,277.43/18,143,204.51 = 7,346,063.70/x - Step 3: Cross multiply
13,147,277.43x = 18,143,204.51 × 7,346,063.70 - Step 4: Simplify right side
13,147,277.43x = 133,281,136,015,856.97 - Step 5: Solve for x
x = 133,281,136,015,856.97/13,147,277.43 - Step 6: Final answer
x = 10,137,546.48
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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.