Finding the Fourth Proportional to 10,624,905.20, 15,937,357.80 and 2,646,729.20
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Solution
The fourth proportional to 10,624,905.20, 15,937,357.80 and 2,646,729.20 is: 3,970,093.80
Step by Step Solution
- Step 1: Write the proportion equation
10,624,905.20 : 15,937,357.80 = 2,646,729.20 : x - Step 2: Convert to fraction form
10,624,905.20/15,937,357.80 = 2,646,729.20/x - Step 3: Cross multiply
10,624,905.20x = 15,937,357.80 × 2,646,729.20 - Step 4: Simplify right side
10,624,905.20x = 42,181,870,260,107.77 - Step 5: Solve for x
x = 42,181,870,260,107.77/10,624,905.20 - Step 6: Final answer
x = 3,970,093.80
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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.