Finding the Fourth Proportional to 2,449,479.20, 3,381,930.78 and 2,190,552.80
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Solution
The fourth proportional to 2,449,479.20, 3,381,930.78 and 2,190,552.80 is: 3,024,437.99
Step by Step Solution
- Step 1: Write the proportion equation
2,449,479.20 : 3,381,930.78 = 2,190,552.80 : x - Step 2: Convert to fraction form
2,449,479.20/3,381,930.78 = 2,190,552.80/x - Step 3: Cross multiply
2,449,479.20x = 3,381,930.78 × 2,190,552.80 - Step 4: Simplify right side
2,449,479.20x = 7,408,297,939,535.18 - Step 5: Solve for x
x = 7,408,297,939,535.18/2,449,479.20 - Step 6: Final answer
x = 3,024,437.99
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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.