Finding the Fourth Proportional to 7,135,008.40, 10,694,639.40 and 3,942,425.80
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Solution
The fourth proportional to 7,135,008.40, 10,694,639.40 and 3,942,425.80 is: 5,909,288.39
Step by Step Solution
- Step 1: Write the proportion equation
7,135,008.40 : 10,694,639.40 = 3,942,425.80 : x - Step 2: Convert to fraction form
7,135,008.40/10,694,639.40 = 3,942,425.80/x - Step 3: Cross multiply
7,135,008.40x = 10,694,639.40 × 3,942,425.80 - Step 4: Simplify right side
7,135,008.40x = 42,162,822,292,256.52 - Step 5: Solve for x
x = 42,162,822,292,256.52/7,135,008.40 - Step 6: Final answer
x = 5,909,288.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.