Finding the Fourth Proportional to 11,638,479.28, 16,061,599.20 and 6,481,840
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Solution
The fourth proportional to 11,638,479.28, 16,061,599.20 and 6,481,840 is: 8,945,216.44
Step by Step Solution
- Step 1: Write the proportion equation
11,638,479.28 : 16,061,599.20 = 6,481,840 : x - Step 2: Convert to fraction form
11,638,479.28/16,061,599.20 = 6,481,840/x - Step 3: Cross multiply
11,638,479.28x = 16,061,599.20 × 6,481,840 - Step 4: Simplify right side
11,638,479.28x = 104,108,716,158,528 - Step 5: Solve for x
x = 104,108,716,158,528/11,638,479.28 - Step 6: Final answer
x = 8,945,216.44
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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.