Finding the Fourth Proportional to 20,333,660.22, 28,059,440.76 and 11,511,739.62
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Solution
The fourth proportional to 20,333,660.22, 28,059,440.76 and 11,511,739.62 is: 15,885,628.68
Step by Step Solution
- Step 1: Write the proportion equation
20,333,660.22 : 28,059,440.76 = 11,511,739.62 : x - Step 2: Convert to fraction form
20,333,660.22/28,059,440.76 = 11,511,739.62/x - Step 3: Cross multiply
20,333,660.22x = 28,059,440.76 × 11,511,739.62 - Step 4: Simplify right side
20,333,660.22x = 323,012,975,911,934.94 - Step 5: Solve for x
x = 323,012,975,911,934.94/20,333,660.22 - Step 6: Final answer
x = 15,885,628.68
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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.