Finding the Fourth Proportional to 311,444,775.70, 467,167,163.55 and 81,437,110.90
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Solution
The fourth proportional to 311,444,775.70, 467,167,163.55 and 81,437,110.90 is: 122,155,666.35
Step by Step Solution
- Step 1: Write the proportion equation
311,444,775.70 : 467,167,163.55 = 81,437,110.90 : x - Step 2: Convert to fraction form
311,444,775.70/467,167,163.55 = 81,437,110.90/x - Step 3: Cross multiply
311,444,775.70x = 467,167,163.55 × 81,437,110.90 - Step 4: Simplify right side
311,444,775.70x = 38,044,744,106,859,792 - Step 5: Solve for x
x = 38,044,744,106,859,792/311,444,775.70 - Step 6: Final answer
x = 122,155,666.35
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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.