Finding the Fourth Proportional to 5,586,586.12, 7,709,497.14 and 3,172,138.12
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Solution
The fourth proportional to 5,586,586.12, 7,709,497.14 and 3,172,138.12 is: 4,377,555.32
Step by Step Solution
- Step 1: Write the proportion equation
5,586,586.12 : 7,709,497.14 = 3,172,138.12 : x - Step 2: Convert to fraction form
5,586,586.12/7,709,497.14 = 3,172,138.12/x - Step 3: Cross multiply
5,586,586.12x = 7,709,497.14 × 3,172,138.12 - Step 4: Simplify right side
5,586,586.12x = 24,455,589,763,824.98 - Step 5: Solve for x
x = 24,455,589,763,824.98/5,586,586.12 - Step 6: Final answer
x = 4,377,555.32
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1.5x scale
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.