Finding the Fourth Proportional to 20,702,327.12, 31,053,486.56 and 5,556,258.62
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Solution
The fourth proportional to 20,702,327.12, 31,053,486.56 and 5,556,258.62 is: 8,334,386.82
Step by Step Solution
- Step 1: Write the proportion equation
20,702,327.12 : 31,053,486.56 = 5,556,258.62 : x - Step 2: Convert to fraction form
20,702,327.12/31,053,486.56 = 5,556,258.62/x - Step 3: Cross multiply
20,702,327.12x = 31,053,486.56 × 5,556,258.62 - Step 4: Simplify right side
20,702,327.12x = 172,541,202,380,054.16 - Step 5: Solve for x
x = 172,541,202,380,054.16/20,702,327.12 - Step 6: Final answer
x = 8,334,386.82
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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.