Finding the Fourth Proportional to 10,368,832.70, 15,553,249.05 and 8,857,178.30
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Solution
The fourth proportional to 10,368,832.70, 15,553,249.05 and 8,857,178.30 is: 13,285,767.45
Step by Step Solution
- Step 1: Write the proportion equation
10,368,832.70 : 15,553,249.05 = 8,857,178.30 : x - Step 2: Convert to fraction form
10,368,832.70/15,553,249.05 = 8,857,178.30/x - Step 3: Cross multiply
10,368,832.70x = 15,553,249.05 × 8,857,178.30 - Step 4: Simplify right side
10,368,832.70x = 137,757,899,980,155.64 - Step 5: Solve for x
x = 137,757,899,980,155.64/10,368,832.70 - Step 6: Final answer
x = 13,285,767.45
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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.