Finding the Fourth Proportional to 7,821,787.75, 11,736,044.66 and 3,781,313.80
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Solution
The fourth proportional to 7,821,787.75, 11,736,044.66 and 3,781,313.80 is: 5,673,596.50
Step by Step Solution
- Step 1: Write the proportion equation
7,821,787.75 : 11,736,044.66 = 3,781,313.80 : x - Step 2: Convert to fraction form
7,821,787.75/11,736,044.66 = 3,781,313.80/x - Step 3: Cross multiply
7,821,787.75x = 11,736,044.66 × 3,781,313.80 - Step 4: Simplify right side
7,821,787.75x = 44,377,667,630,274.30 - Step 5: Solve for x
x = 44,377,667,630,274.30/7,821,787.75 - Step 6: Final answer
x = 5,673,596.50
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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.