Finding the Fourth Proportional to 290,147,232.70, 434,937,413.85 and 259,536,231.10
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Solution
The fourth proportional to 290,147,232.70, 434,937,413.85 and 259,536,231.10 is: 389,050,814.32
Step by Step Solution
- Step 1: Write the proportion equation
290,147,232.70 : 434,937,413.85 = 259,536,231.10 : x - Step 2: Convert to fraction form
290,147,232.70/434,937,413.85 = 259,536,231.10/x - Step 3: Cross multiply
290,147,232.70x = 434,937,413.85 × 259,536,231.10 - Step 4: Simplify right side
290,147,232.70x = 112,882,017,155,009,952 - Step 5: Solve for x
x = 112,882,017,155,009,952/290,147,232.70 - Step 6: Final answer
x = 389,050,814.32
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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.