Finding the Fourth Proportional to 18,438,413.80, 27,657,620.70 and 8,872,475.80
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Solution
The fourth proportional to 18,438,413.80, 27,657,620.70 and 8,872,475.80 is: 13,308,713.70
Step by Step Solution
- Step 1: Write the proportion equation
18,438,413.80 : 27,657,620.70 = 8,872,475.80 : x - Step 2: Convert to fraction form
18,438,413.80/27,657,620.70 = 8,872,475.80/x - Step 3: Cross multiply
18,438,413.80x = 27,657,620.70 × 8,872,475.80 - Step 4: Simplify right side
18,438,413.80x = 245,391,570,346,329.06 - Step 5: Solve for x
x = 245,391,570,346,329.06/18,438,413.80 - Step 6: Final answer
x = 13,308,713.70
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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.