Finding the Fourth Proportional to 2,998,331.51, 4,137,685.13 and 1,621,676.70
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Solution
The fourth proportional to 2,998,331.51, 4,137,685.13 and 1,621,676.70 is: 2,237,907.17
Step by Step Solution
- Step 1: Write the proportion equation
2,998,331.51 : 4,137,685.13 = 1,621,676.70 : x - Step 2: Convert to fraction form
2,998,331.51/4,137,685.13 = 1,621,676.70/x - Step 3: Cross multiply
2,998,331.51x = 4,137,685.13 × 1,621,676.70 - Step 4: Simplify right side
2,998,331.51x = 6,709,987,571,311.66 - Step 5: Solve for x
x = 6,709,987,571,311.66/2,998,331.51 - Step 6: Final answer
x = 2,237,907.17
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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.