Finding the Fourth Proportional to 13,763,672.79, 18,989,219.42 and 7,802,440.06
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Solution
The fourth proportional to 13,763,672.79, 18,989,219.42 and 7,802,440.06 is: 10,764,731.81
Step by Step Solution
- Step 1: Write the proportion equation
13,763,672.79 : 18,989,219.42 = 7,802,440.06 : x - Step 2: Convert to fraction form
13,763,672.79/18,989,219.42 = 7,802,440.06/x - Step 3: Cross multiply
13,763,672.79x = 18,989,219.42 × 7,802,440.06 - Step 4: Simplify right side
13,763,672.79x = 148,162,246,310,737.97 - Step 5: Solve for x
x = 148,162,246,310,737.97/13,763,672.79 - Step 6: Final answer
x = 10,764,731.81
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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.