Finding the Fourth Proportional to 18,468,137.88, 25,485,585.39 and 10,095,135.48
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Solution
The fourth proportional to 18,468,137.88, 25,485,585.39 and 10,095,135.48 is: 13,931,043.78
Step by Step Solution
- Step 1: Write the proportion equation
18,468,137.88 : 25,485,585.39 = 10,095,135.48 : x - Step 2: Convert to fraction form
18,468,137.88/25,485,585.39 = 10,095,135.48/x - Step 3: Cross multiply
18,468,137.88x = 25,485,585.39 × 10,095,135.48 - Step 4: Simplify right side
18,468,137.88x = 257,280,437,299,158.66 - Step 5: Solve for x
x = 257,280,437,299,158.66/18,468,137.88 - Step 6: Final answer
x = 13,931,043.78
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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.