Finding the Fourth Proportional to 133,010,413.80, 199,515,620.70 and 129,029,101.80
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Solution
The fourth proportional to 133,010,413.80, 199,515,620.70 and 129,029,101.80 is: 193,543,652.70
Step by Step Solution
- Step 1: Write the proportion equation
133,010,413.80 : 199,515,620.70 = 129,029,101.80 : x - Step 2: Convert to fraction form
133,010,413.80/199,515,620.70 = 129,029,101.80/x - Step 3: Cross multiply
133,010,413.80x = 199,515,620.70 × 129,029,101.80 - Step 4: Simplify right side
133,010,413.80x = 25,743,321,333,990,484 - Step 5: Solve for x
x = 25,743,321,333,990,484/133,010,413.80 - Step 6: Final answer
x = 193,543,652.70
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1.5x scale
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.