Finding the Fourth Proportional to 8,512,295.80, 12,768,443.70 and 7,449,413.80
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Solution
The fourth proportional to 8,512,295.80, 12,768,443.70 and 7,449,413.80 is: 11,174,120.70
Step by Step Solution
- Step 1: Write the proportion equation
8,512,295.80 : 12,768,443.70 = 7,449,413.80 : x - Step 2: Convert to fraction form
8,512,295.80/12,768,443.70 = 7,449,413.80/x - Step 3: Cross multiply
8,512,295.80x = 12,768,443.70 × 7,449,413.80 - Step 4: Simplify right side
8,512,295.80x = 95,117,420,703,303.05 - Step 5: Solve for x
x = 95,117,420,703,303.05/8,512,295.80 - Step 6: Final answer
x = 11,174,120.70
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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.