Finding the Fourth Proportional to 5,149,858.16, 7,724,787.24 and 2,746,421.30
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Solution
The fourth proportional to 5,149,858.16, 7,724,787.24 and 2,746,421.30 is: 4,119,631.95
Step by Step Solution
- Step 1: Write the proportion equation
5,149,858.16 : 7,724,787.24 = 2,746,421.30 : x - Step 2: Convert to fraction form
5,149,858.16/7,724,787.24 = 2,746,421.30/x - Step 3: Cross multiply
5,149,858.16x = 7,724,787.24 × 2,746,421.30 - Step 4: Simplify right side
5,149,858.16x = 21,215,520,213,904.21 - Step 5: Solve for x
x = 21,215,520,213,904.21/5,149,858.16 - Step 6: Final answer
x = 4,119,631.95
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1.5x scale
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.