Finding the Fourth Proportional to 20,207,198.98, 27,885,962.10 and 11,505,375.46
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Solution
The fourth proportional to 20,207,198.98, 27,885,962.10 and 11,505,375.46 is: 15,877,433.80
Step by Step Solution
- Step 1: Write the proportion equation
20,207,198.98 : 27,885,962.10 = 11,505,375.46 : x - Step 2: Convert to fraction form
20,207,198.98/27,885,962.10 = 11,505,375.46/x - Step 3: Cross multiply
20,207,198.98x = 27,885,962.10 × 11,505,375.46 - Step 4: Simplify right side
20,207,198.98x = 320,838,464,023,830.12 - Step 5: Solve for x
x = 320,838,464,023,830.12/20,207,198.98 - Step 6: Final answer
x = 15,877,433.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.