Finding the Fourth Proportional to 12,996,277.74, 17,929,231.20 and 7,836,772.92
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Solution
The fourth proportional to 12,996,277.74, 17,929,231.20 and 7,836,772.92 is: 10,811,350.48
Step by Step Solution
- Step 1: Write the proportion equation
12,996,277.74 : 17,929,231.20 = 7,836,772.92 : x - Step 2: Convert to fraction form
12,996,277.74/17,929,231.20 = 7,836,772.92/x - Step 3: Cross multiply
12,996,277.74x = 17,929,231.20 × 7,836,772.92 - Step 4: Simplify right side
12,996,277.74x = 140,507,313,544,579.09 - Step 5: Solve for x
x = 140,507,313,544,579.09/12,996,277.74 - Step 6: Final answer
x = 10,811,350.48
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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.