Finding the Fourth Proportional to 18,135,909.70, 27,168,435.15 and 10,926,026.80
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Solution
The fourth proportional to 18,135,909.70, 27,168,435.15 and 10,926,026.80 is: 16,367,695.66
Step by Step Solution
- Step 1: Write the proportion equation
18,135,909.70 : 27,168,435.15 = 10,926,026.80 : x - Step 2: Convert to fraction form
18,135,909.70/27,168,435.15 = 10,926,026.80/x - Step 3: Cross multiply
18,135,909.70x = 27,168,435.15 × 10,926,026.80 - Step 4: Simplify right side
18,135,909.70x = 296,843,050,562,962 - Step 5: Solve for x
x = 296,843,050,562,962/18,135,909.70 - Step 6: Final answer
x = 16,367,695.66
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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.