Finding the Fourth Proportional to 695,422,942.20, 1,043,134,413.30 and 684,673,399.80
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Solution
The fourth proportional to 695,422,942.20, 1,043,134,413.30 and 684,673,399.80 is: 1,027,010,099.70
Step by Step Solution
- Step 1: Write the proportion equation
695,422,942.20 : 1,043,134,413.30 = 684,673,399.80 : x - Step 2: Convert to fraction form
695,422,942.20/1,043,134,413.30 = 684,673,399.80/x - Step 3: Cross multiply
695,422,942.20x = 1,043,134,413.30 × 684,673,399.80 - Step 4: Simplify right side
695,422,942.20x = 714,206,385,202,489,216 - Step 5: Solve for x
x = 714,206,385,202,489,216/695,422,942.20 - Step 6: Final answer
x = 1,027,010,099.70
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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.