Finding the Fourth Proportional to 2,165,751.01, 2,987,428.84 and 1,391,121.08
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Solution
The fourth proportional to 2,165,751.01, 2,987,428.84 and 1,391,121.08 is: 1,918,907.21
Step by Step Solution
- Step 1: Write the proportion equation
2,165,751.01 : 2,987,428.84 = 1,391,121.08 : x - Step 2: Convert to fraction form
2,165,751.01/2,987,428.84 = 1,391,121.08/x - Step 3: Cross multiply
2,165,751.01x = 2,987,428.84 × 1,391,121.08 - Step 4: Simplify right side
2,165,751.01x = 4,155,875,234,323.95 - Step 5: Solve for x
x = 4,155,875,234,323.95/2,165,751.01 - Step 6: Final answer
x = 1,918,907.21
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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.