Finding the Fourth Proportional to 10,331,562.80, 15,497,344.20 and 3,942,023.60
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Solution
The fourth proportional to 10,331,562.80, 15,497,344.20 and 3,942,023.60 is: 5,913,035.40
Step by Step Solution
- Step 1: Write the proportion equation
10,331,562.80 : 15,497,344.20 = 3,942,023.60 : x - Step 2: Convert to fraction form
10,331,562.80/15,497,344.20 = 3,942,023.60/x - Step 3: Cross multiply
10,331,562.80x = 15,497,344.20 × 3,942,023.60 - Step 4: Simplify right side
10,331,562.80x = 61,090,896,573,723.12 - Step 5: Solve for x
x = 61,090,896,573,723.12/10,331,562.80 - Step 6: Final answer
x = 5,913,035.40
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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.