Finding the Fourth Proportional to 103,204,839.32, 142,390,614.12 and 58,543,450.84
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Solution
The fourth proportional to 103,204,839.32, 142,390,614.12 and 58,543,450.84 is: 80,771,773.62
Step by Step Solution
- Step 1: Write the proportion equation
103,204,839.32 : 142,390,614.12 = 58,543,450.84 : x - Step 2: Convert to fraction form
103,204,839.32/142,390,614.12 = 58,543,450.84/x - Step 3: Cross multiply
103,204,839.32x = 142,390,614.12 × 58,543,450.84 - Step 4: Simplify right side
103,204,839.32x = 8,336,037,917,811,631 - Step 5: Solve for x
x = 8,336,037,917,811,631/103,204,839.32 - Step 6: Final answer
x = 80,771,773.62
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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.