Finding the Fourth Proportional to 7,115,729.23, 9,819,589.12 and 3,852,517.87
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Solution
The fourth proportional to 7,115,729.23, 9,819,589.12 and 3,852,517.87 is: 5,316,411.20
Step by Step Solution
- Step 1: Write the proportion equation
7,115,729.23 : 9,819,589.12 = 3,852,517.87 : x - Step 2: Convert to fraction form
7,115,729.23/9,819,589.12 = 3,852,517.87/x - Step 3: Cross multiply
7,115,729.23x = 9,819,589.12 × 3,852,517.87 - Step 4: Simplify right side
7,115,729.23x = 37,830,142,560,857.57 - Step 5: Solve for x
x = 37,830,142,560,857.57/7,115,729.23 - Step 6: Final answer
x = 5,316,411.20
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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.