Finding the Fourth Proportional to 5,162,437.57, 7,124,337.86 and 2,839,509.75
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Solution
The fourth proportional to 5,162,437.57, 7,124,337.86 and 2,839,509.75 is: 3,918,619.17
Step by Step Solution
- Step 1: Write the proportion equation
5,162,437.57 : 7,124,337.86 = 2,839,509.75 : x - Step 2: Convert to fraction form
5,162,437.57/7,124,337.86 = 2,839,509.75/x - Step 3: Cross multiply
5,162,437.57x = 7,124,337.86 × 2,839,509.75 - Step 4: Simplify right side
5,162,437.57x = 20,229,626,815,764.14 - Step 5: Solve for x
x = 20,229,626,815,764.14/5,162,437.57 - Step 6: Final answer
x = 3,918,619.17
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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.