Finding the Fourth Proportional to 8,387,135.68, 11,550,289.20 and 7,553,107.84
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Solution
The fourth proportional to 8,387,135.68, 11,550,289.20 and 7,553,107.84 is: 10,401,713.20
Step by Step Solution
- Step 1: Write the proportion equation
8,387,135.68 : 11,550,289.20 = 7,553,107.84 : x - Step 2: Convert to fraction form
8,387,135.68/11,550,289.20 = 7,553,107.84/x - Step 3: Cross multiply
8,387,135.68x = 11,550,289.20 × 7,553,107.84 - Step 4: Simplify right side
8,387,135.68x = 87,240,579,910,787.33 - Step 5: Solve for x
x = 87,240,579,910,787.33/8,387,135.68 - Step 6: Final answer
x = 10,401,713.20
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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.