Finding the Fourth Proportional to 11,380,744.62, 15,686,991.36 and 8,895,637.08
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Solution
The fourth proportional to 11,380,744.62, 15,686,991.36 and 8,895,637.08 is: 12,261,568.70
Step by Step Solution
- Step 1: Write the proportion equation
11,380,744.62 : 15,686,991.36 = 8,895,637.08 : x - Step 2: Convert to fraction form
11,380,744.62/15,686,991.36 = 8,895,637.08/x - Step 3: Cross multiply
11,380,744.62x = 15,686,991.36 × 8,895,637.08 - Step 4: Simplify right side
11,380,744.62x = 139,545,782,015,655.62 - Step 5: Solve for x
x = 139,545,782,015,655.62/11,380,744.62 - Step 6: Final answer
x = 12,261,568.70
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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.