Finding the Fourth Proportional to 112,331,471.40, 168,497,207.10 and 74,036,226.60
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Solution
The fourth proportional to 112,331,471.40, 168,497,207.10 and 74,036,226.60 is: 111,054,339.90
Step by Step Solution
- Step 1: Write the proportion equation
112,331,471.40 : 168,497,207.10 = 74,036,226.60 : x - Step 2: Convert to fraction form
112,331,471.40/168,497,207.10 = 74,036,226.60/x - Step 3: Cross multiply
112,331,471.40x = 168,497,207.10 × 74,036,226.60 - Step 4: Simplify right side
112,331,471.40x = 12,474,897,406,322,728 - Step 5: Solve for x
x = 12,474,897,406,322,728/112,331,471.40 - Step 6: Final answer
x = 111,054,339.90
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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.