Finding the Fourth Proportional to 20,650,129.58, 28,497,202.44 and 11,482,575.50
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Solution
The fourth proportional to 20,650,129.58, 28,497,202.44 and 11,482,575.50 is: 15,845,967.32
Step by Step Solution
- Step 1: Write the proportion equation
20,650,129.58 : 28,497,202.44 = 11,482,575.50 : x - Step 2: Convert to fraction form
20,650,129.58/28,497,202.44 = 11,482,575.50/x - Step 3: Cross multiply
20,650,129.58x = 28,497,202.44 × 11,482,575.50 - Step 4: Simplify right side
20,650,129.58x = 327,221,278,556,084.25 - Step 5: Solve for x
x = 327,221,278,556,084.25/20,650,129.58 - Step 6: Final answer
x = 15,845,967.32
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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.