Finding the Fourth Proportional to 15,305,086.08, 21,120,586.56 and 8,335,605.60
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Solution
The fourth proportional to 15,305,086.08, 21,120,586.56 and 8,335,605.60 is: 11,502,900.32
Step by Step Solution
- Step 1: Write the proportion equation
15,305,086.08 : 21,120,586.56 = 8,335,605.60 : x - Step 2: Convert to fraction form
15,305,086.08/21,120,586.56 = 8,335,605.60/x - Step 3: Cross multiply
15,305,086.08x = 21,120,586.56 × 8,335,605.60 - Step 4: Simplify right side
15,305,086.08x = 176,052,879,604,820.72 - Step 5: Solve for x
x = 176,052,879,604,820.72/15,305,086.08 - Step 6: Final answer
x = 11,502,900.32
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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.