Finding the Fourth Proportional to 5,579,701.20, 8,367,478.20 and 2,213,211.60
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Solution
The fourth proportional to 5,579,701.20, 8,367,478.20 and 2,213,211.60 is: 3,318,994.90
Step by Step Solution
- Step 1: Write the proportion equation
5,579,701.20 : 8,367,478.20 = 2,213,211.60 : x - Step 2: Convert to fraction form
5,579,701.20/8,367,478.20 = 2,213,211.60/x - Step 3: Cross multiply
5,579,701.20x = 8,367,478.20 × 2,213,211.60 - Step 4: Simplify right side
5,579,701.20x = 18,518,999,814,987.12 - Step 5: Solve for x
x = 18,518,999,814,987.12/5,579,701.20 - Step 6: Final answer
x = 3,318,994.90
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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.