Finding the Fourth Proportional to 149,562,882.31, 206,431,214.98 and 87,703,149.91
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Solution
The fourth proportional to 149,562,882.31, 206,431,214.98 and 87,703,149.91 is: 121,050,540.84
Step by Step Solution
- Step 1: Write the proportion equation
149,562,882.31 : 206,431,214.98 = 87,703,149.91 : x - Step 2: Convert to fraction form
149,562,882.31/206,431,214.98 = 87,703,149.91/x - Step 3: Cross multiply
149,562,882.31x = 206,431,214.98 × 87,703,149.91 - Step 4: Simplify right side
149,562,882.31x = 18,104,667,793,143,576 - Step 5: Solve for x
x = 18,104,667,793,143,576/149,562,882.31 - Step 6: Final answer
x = 121,050,540.84
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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.