Finding the Fourth Proportional to 5,176,215.16, 7,764,322.74 and 1,581,992.44
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Solution
The fourth proportional to 5,176,215.16, 7,764,322.74 and 1,581,992.44 is: 2,372,988.66
Step by Step Solution
- Step 1: Write the proportion equation
5,176,215.16 : 7,764,322.74 = 1,581,992.44 : x - Step 2: Convert to fraction form
5,176,215.16/7,764,322.74 = 1,581,992.44/x - Step 3: Cross multiply
5,176,215.16x = 7,764,322.74 × 1,581,992.44 - Step 4: Simplify right side
5,176,215.16x = 12,283,099,876,400.09 - Step 5: Solve for x
x = 12,283,099,876,400.09/5,176,215.16 - Step 6: Final answer
x = 2,372,988.66
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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.