Finding the Fourth Proportional to 86,086,215.52, 129,129,461.79 and 26,192,982.49
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Solution
The fourth proportional to 86,086,215.52, 129,129,461.79 and 26,192,982.49 is: 39,289,515.88
Step by Step Solution
- Step 1: Write the proportion equation
86,086,215.52 : 129,129,461.79 = 26,192,982.49 : x - Step 2: Convert to fraction form
86,086,215.52/129,129,461.79 = 26,192,982.49/x - Step 3: Cross multiply
86,086,215.52x = 129,129,461.79 × 26,192,982.49 - Step 4: Simplify right side
86,086,215.52x = 3,382,285,731,608,594 - Step 5: Solve for x
x = 3,382,285,731,608,594/86,086,215.52 - Step 6: Final answer
x = 39,289,515.88
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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.