Finding the Fourth Proportional to 258,979,413.98, 357,396,400.79 and 141,512,352.56
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Solution
The fourth proportional to 258,979,413.98, 357,396,400.79 and 141,512,352.56 is: 195,289,674.55
Step by Step Solution
- Step 1: Write the proportion equation
258,979,413.98 : 357,396,400.79 = 141,512,352.56 : x - Step 2: Convert to fraction form
258,979,413.98/357,396,400.79 = 141,512,352.56/x - Step 3: Cross multiply
258,979,413.98x = 357,396,400.79 × 141,512,352.56 - Step 4: Simplify right side
258,979,413.98x = 50,576,005,472,269,544 - Step 5: Solve for x
x = 50,576,005,472,269,544/258,979,413.98 - Step 6: Final answer
x = 195,289,674.55
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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.