Finding the Fourth Proportional to 9,874,541.40, 13,621,378.14 and 5,744,107.80
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Solution
The fourth proportional to 9,874,541.40, 13,621,378.14 and 5,744,107.80 is: 7,923,675.77
Step by Step Solution
- Step 1: Write the proportion equation
9,874,541.40 : 13,621,378.14 = 5,744,107.80 : x - Step 2: Convert to fraction form
9,874,541.40/13,621,378.14 = 5,744,107.80/x - Step 3: Cross multiply
9,874,541.40x = 13,621,378.14 × 5,744,107.80 - Step 4: Simplify right side
9,874,541.40x = 78,242,664,420,723.50 - Step 5: Solve for x
x = 78,242,664,420,723.50/9,874,541.40 - Step 6: Final answer
x = 7,923,675.77
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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.