Finding the Fourth Proportional to 129,414,123.81, 194,125,171.53 and 56,593,420.79
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Solution
The fourth proportional to 129,414,123.81, 194,125,171.53 and 56,593,420.79 is: 84,891,874.19
Step by Step Solution
- Step 1: Write the proportion equation
129,414,123.81 : 194,125,171.53 = 56,593,420.79 : x - Step 2: Convert to fraction form
129,414,123.81/194,125,171.53 = 56,593,420.79/x - Step 3: Cross multiply
129,414,123.81x = 194,125,171.53 × 56,593,420.79 - Step 4: Simplify right side
129,414,123.81x = 10,986,207,517,701,422 - Step 5: Solve for x
x = 10,986,207,517,701,422/129,414,123.81 - Step 6: Final answer
x = 84,891,874.19
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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.