Finding the Fourth Proportional to 11,878,311.94, 16,392,070.49 and 6,445,803.94
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Solution
The fourth proportional to 11,878,311.94, 16,392,070.49 and 6,445,803.94 is: 8,895,209.44
Step by Step Solution
- Step 1: Write the proportion equation
11,878,311.94 : 16,392,070.49 = 6,445,803.94 : x - Step 2: Convert to fraction form
11,878,311.94/16,392,070.49 = 6,445,803.94/x - Step 3: Cross multiply
11,878,311.94x = 16,392,070.49 × 6,445,803.94 - Step 4: Simplify right side
11,878,311.94x = 105,660,072,568,195.94 - Step 5: Solve for x
x = 105,660,072,568,195.94/11,878,311.94 - Step 6: Final answer
x = 8,895,209.44
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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.