Finding the Fourth Proportional to 459,438,158.50, 634,078,260.70 and 261,229,352.05
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Solution
The fourth proportional to 459,438,158.50, 634,078,260.70 and 261,229,352.05 is: 360,526,983.07
Step by Step Solution
- Step 1: Write the proportion equation
459,438,158.50 : 634,078,260.70 = 261,229,352.05 : x - Step 2: Convert to fraction form
459,438,158.50/634,078,260.70 = 261,229,352.05/x - Step 3: Cross multiply
459,438,158.50x = 634,078,260.70 × 261,229,352.05 - Step 4: Simplify right side
459,438,158.50x = 165,639,853,189,413,728 - Step 5: Solve for x
x = 165,639,853,189,413,728/459,438,158.50 - Step 6: Final answer
x = 360,526,983.07
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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.