Finding the Fourth Proportional to 7,242,446.80, 10,863,670.20 and 3,883,214.80
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Solution
The fourth proportional to 7,242,446.80, 10,863,670.20 and 3,883,214.80 is: 5,824,822.20
Step by Step Solution
- Step 1: Write the proportion equation
7,242,446.80 : 10,863,670.20 = 3,883,214.80 : x - Step 2: Convert to fraction form
7,242,446.80/10,863,670.20 = 3,883,214.80/x - Step 3: Cross multiply
7,242,446.80x = 10,863,670.20 × 3,883,214.80 - Step 4: Simplify right side
7,242,446.80x = 42,185,964,902,958.95 - Step 5: Solve for x
x = 42,185,964,902,958.95/7,242,446.80 - Step 6: Final answer
x = 5,824,822.20
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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.