Finding the Fourth Proportional to 2,997,155.16, 4,135,990.14 and 1,638,999
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Solution
The fourth proportional to 2,997,155.16, 4,135,990.14 and 1,638,999 is: 2,261,772.69
Step by Step Solution
- Step 1: Write the proportion equation
2,997,155.16 : 4,135,990.14 = 1,638,999 : x - Step 2: Convert to fraction form
2,997,155.16/4,135,990.14 = 1,638,999/x - Step 3: Cross multiply
2,997,155.16x = 4,135,990.14 × 1,638,999 - Step 4: Simplify right side
2,997,155.16x = 6,778,883,703,469.86 - Step 5: Solve for x
x = 6,778,883,703,469.86/2,997,155.16 - Step 6: Final answer
x = 2,261,772.69
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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.