Finding the Fourth Proportional to 7,883,697.20, 11,822,089.80 and 3,622,449.20
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Solution
The fourth proportional to 7,883,697.20, 11,822,089.80 and 3,622,449.20 is: 5,432,085.82
Step by Step Solution
- Step 1: Write the proportion equation
7,883,697.20 : 11,822,089.80 = 3,622,449.20 : x - Step 2: Convert to fraction form
7,883,697.20/11,822,089.80 = 3,622,449.20/x - Step 3: Cross multiply
7,883,697.20x = 11,822,089.80 × 3,622,449.20 - Step 4: Simplify right side
7,883,697.20x = 42,824,919,738,338.16 - Step 5: Solve for x
x = 42,824,919,738,338.16/7,883,697.20 - Step 6: Final answer
x = 5,432,085.82
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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.