Finding the Fourth Proportional to 86,154,143.33, 129,232,339.57 and 28,646,414.48
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Solution
The fourth proportional to 86,154,143.33, 129,232,339.57 and 28,646,414.48 is: 42,969,995.64
Step by Step Solution
- Step 1: Write the proportion equation
86,154,143.33 : 129,232,339.57 = 28,646,414.48 : x - Step 2: Convert to fraction form
86,154,143.33/129,232,339.57 = 28,646,414.48/x - Step 3: Cross multiply
86,154,143.33x = 129,232,339.57 × 28,646,414.48 - Step 4: Simplify right side
86,154,143.33x = 3,702,043,163,542,325 - Step 5: Solve for x
x = 3,702,043,163,542,325/86,154,143.33 - Step 6: Final answer
x = 42,969,995.64
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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.