Finding the Fourth Proportional to 3,621,962.12, 4,997,217.74 and 2,171,128.19
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Solution
The fourth proportional to 3,621,962.12, 4,997,217.74 and 2,171,128.19 is: 2,995,503.52
Step by Step Solution
- Step 1: Write the proportion equation
3,621,962.12 : 4,997,217.74 = 2,171,128.19 : x - Step 2: Convert to fraction form
3,621,962.12/4,997,217.74 = 2,171,128.19/x - Step 3: Cross multiply
3,621,962.12x = 4,997,217.74 × 2,171,128.19 - Step 4: Simplify right side
3,621,962.12x = 10,849,600,271,040.36 - Step 5: Solve for x
x = 10,849,600,271,040.36/3,621,962.12 - Step 6: Final answer
x = 2,995,503.52
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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.