Finding the Fourth Proportional to 3,642,830.19, 5,022,432.77 and 2,987,040.01
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Solution
The fourth proportional to 3,642,830.19, 5,022,432.77 and 2,987,040.01 is: 4,118,283.55
Step by Step Solution
- Step 1: Write the proportion equation
3,642,830.19 : 5,022,432.77 = 2,987,040.01 : x - Step 2: Convert to fraction form
3,642,830.19/5,022,432.77 = 2,987,040.01/x - Step 3: Cross multiply
3,642,830.19x = 5,022,432.77 × 2,987,040.01 - Step 4: Simplify right side
3,642,830.19x = 15,002,207,631,525.12 - Step 5: Solve for x
x = 15,002,207,631,525.12/3,642,830.19 - Step 6: Final answer
x = 4,118,283.55
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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.