Finding the Fourth Proportional to 2,991,616.80, 4,482,176.40 and 2,456,239.20
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Solution
The fourth proportional to 2,991,616.80, 4,482,176.40 and 2,456,239.20 is: 3,680,049.32
Step by Step Solution
- Step 1: Write the proportion equation
2,991,616.80 : 4,482,176.40 = 2,456,239.20 : x - Step 2: Convert to fraction form
2,991,616.80/4,482,176.40 = 2,456,239.20/x - Step 3: Cross multiply
2,991,616.80x = 4,482,176.40 × 2,456,239.20 - Step 4: Simplify right side
2,991,616.80x = 11,009,297,374,994.88 - Step 5: Solve for x
x = 11,009,297,374,994.88/2,991,616.80 - Step 6: Final answer
x = 3,680,049.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.