Finding the Fourth Proportional to 11,490,756.54, 15,857,136.63 and 6,263,763.90
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Solution
The fourth proportional to 11,490,756.54, 15,857,136.63 and 6,263,763.90 is: 8,643,935.64
Step by Step Solution
- Step 1: Write the proportion equation
11,490,756.54 : 15,857,136.63 = 6,263,763.90 : x - Step 2: Convert to fraction form
11,490,756.54/15,857,136.63 = 6,263,763.90/x - Step 3: Cross multiply
11,490,756.54x = 15,857,136.63 × 6,263,763.90 - Step 4: Simplify right side
11,490,756.54x = 99,325,359,980,361.67 - Step 5: Solve for x
x = 99,325,359,980,361.67/11,490,756.54 - Step 6: Final answer
x = 8,643,935.64
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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.