Finding the Fourth Proportional to 123,210,451.44, 170,031,766.68 and 68,207,226.48
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Solution
The fourth proportional to 123,210,451.44, 170,031,766.68 and 68,207,226.48 is: 94,126,716.39
Step by Step Solution
- Step 1: Write the proportion equation
123,210,451.44 : 170,031,766.68 = 68,207,226.48 : x - Step 2: Convert to fraction form
123,210,451.44/170,031,766.68 = 68,207,226.48/x - Step 3: Cross multiply
123,210,451.44x = 170,031,766.68 × 68,207,226.48 - Step 4: Simplify right side
123,210,451.44x = 11,597,395,218,737,278 - Step 5: Solve for x
x = 11,597,395,218,737,278/123,210,451.44 - Step 6: Final answer
x = 94,126,716.39
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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.