Finding the Fourth Proportional to 1,102,879,015.24, 1,521,968,441.94 and 607,840,542.28
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Solution
The fourth proportional to 1,102,879,015.24, 1,521,968,441.94 and 607,840,542.28 is: 838,817,413.60
Step by Step Solution
- Step 1: Write the proportion equation
1,102,879,015.24 : 1,521,968,441.94 = 607,840,542.28 : x - Step 2: Convert to fraction form
1,102,879,015.24/1,521,968,441.94 = 607,840,542.28/x - Step 3: Cross multiply
1,102,879,015.24x = 1,521,968,441.94 × 607,840,542.28 - Step 4: Simplify right side
1,102,879,015.24x = 925,114,123,081,856,256 - Step 5: Solve for x
x = 925,114,123,081,856,256/1,102,879,015.24 - Step 6: Final answer
x = 838,817,413.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.