Finding the Fourth Proportional to 3,621,669.08, 4,997,901.94 and 1,990,181.56
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Solution
The fourth proportional to 3,621,669.08, 4,997,901.94 and 1,990,181.56 is: 2,746,449.79
Step by Step Solution
- Step 1: Write the proportion equation
3,621,669.08 : 4,997,901.94 = 1,990,181.56 : x - Step 2: Convert to fraction form
3,621,669.08/4,997,901.94 = 1,990,181.56/x - Step 3: Cross multiply
3,621,669.08x = 4,997,901.94 × 1,990,181.56 - Step 4: Simplify right side
3,621,669.08x = 9,946,732,279,676.23 - Step 5: Solve for x
x = 9,946,732,279,676.23/3,621,669.08 - Step 6: Final answer
x = 2,746,449.79
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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.