Finding the Fourth Proportional to 6,731,844.86, 9,289,937.85 and 3,979,524.26
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Solution
The fourth proportional to 6,731,844.86, 9,289,937.85 and 3,979,524.26 is: 5,491,738.72
Step by Step Solution
- Step 1: Write the proportion equation
6,731,844.86 : 9,289,937.85 = 3,979,524.26 : x - Step 2: Convert to fraction form
6,731,844.86/9,289,937.85 = 3,979,524.26/x - Step 3: Cross multiply
6,731,844.86x = 9,289,937.85 × 3,979,524.26 - Step 4: Simplify right side
6,731,844.86x = 36,969,533,047,967.23 - Step 5: Solve for x
x = 36,969,533,047,967.23/6,731,844.86 - Step 6: Final answer
x = 5,491,738.72
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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.