Finding the Fourth Proportional to 129,485,413.20, 194,228,119.80 and 88,670,744.40
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Solution
The fourth proportional to 129,485,413.20, 194,228,119.80 and 88,670,744.40 is: 133,006,116.60
Step by Step Solution
- Step 1: Write the proportion equation
129,485,413.20 : 194,228,119.80 = 88,670,744.40 : x - Step 2: Convert to fraction form
129,485,413.20/194,228,119.80 = 88,670,744.40/x - Step 3: Cross multiply
129,485,413.20x = 194,228,119.80 × 88,670,744.40 - Step 4: Simplify right side
129,485,413.20x = 17,222,351,966,078,382 - Step 5: Solve for x
x = 17,222,351,966,078,382/129,485,413.20 - Step 6: Final answer
x = 133,006,116.60
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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.