Finding the Fourth Proportional to 209,436,228.61, 289,024,003.41 and 115,352,508.53
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Solution
The fourth proportional to 209,436,228.61, 289,024,003.41 and 115,352,508.53 is: 159,187,567.69
Step by Step Solution
- Step 1: Write the proportion equation
209,436,228.61 : 289,024,003.41 = 115,352,508.53 : x - Step 2: Convert to fraction form
209,436,228.61/289,024,003.41 = 115,352,508.53/x - Step 3: Cross multiply
209,436,228.61x = 289,024,003.41 × 115,352,508.53 - Step 4: Simplify right side
209,436,228.61x = 33,339,643,819,016,760 - Step 5: Solve for x
x = 33,339,643,819,016,760/209,436,228.61 - Step 6: Final answer
x = 159,187,567.69
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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.