Finding the Fourth Proportional to 5,376,908.70, 8,065,363.05 and 4,879,244.70
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Solution
The fourth proportional to 5,376,908.70, 8,065,363.05 and 4,879,244.70 is: 7,318,867.05
Step by Step Solution
- Step 1: Write the proportion equation
5,376,908.70 : 8,065,363.05 = 4,879,244.70 : x - Step 2: Convert to fraction form
5,376,908.70/8,065,363.05 = 4,879,244.70/x - Step 3: Cross multiply
5,376,908.70x = 8,065,363.05 × 4,879,244.70 - Step 4: Simplify right side
5,376,908.70x = 39,352,879,915,288.34 - Step 5: Solve for x
x = 39,352,879,915,288.34/5,376,908.70 - Step 6: Final answer
x = 7,318,867.05
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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.