Finding the Fourth Proportional to 11,818,924.80, 17,723,203.20 and 5,427,052.80
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Solution
The fourth proportional to 11,818,924.80, 17,723,203.20 and 5,427,052.80 is: 8,138,198.79
Step by Step Solution
- Step 1: Write the proportion equation
11,818,924.80 : 17,723,203.20 = 5,427,052.80 : x - Step 2: Convert to fraction form
11,818,924.80/17,723,203.20 = 5,427,052.80/x - Step 3: Cross multiply
11,818,924.80x = 17,723,203.20 × 5,427,052.80 - Step 4: Simplify right side
11,818,924.80x = 96,184,759,551,528.95 - Step 5: Solve for x
x = 96,184,759,551,528.95/11,818,924.80 - Step 6: Final answer
x = 8,138,198.79
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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.