Finding the Fourth Proportional to 8,979,571.68, 12,392,080.80 and 4,905,453.12
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Solution
The fourth proportional to 8,979,571.68, 12,392,080.80 and 4,905,453.12 is: 6,769,673.83
Step by Step Solution
- Step 1: Write the proportion equation
8,979,571.68 : 12,392,080.80 = 4,905,453.12 : x - Step 2: Convert to fraction form
8,979,571.68/12,392,080.80 = 4,905,453.12/x - Step 3: Cross multiply
8,979,571.68x = 12,392,080.80 × 4,905,453.12 - Step 4: Simplify right side
8,979,571.68x = 60,788,771,423,652.10 - Step 5: Solve for x
x = 60,788,771,423,652.10/8,979,571.68 - Step 6: Final answer
x = 6,769,673.83
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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.